I would never trust a Razer product again, I’ve owned two of their Nagas and they both failed (double-clicking issue) within a year. Everyone in my WoW guild who have experience with MMO nice report the same problem with Razer mice.

I personally have the Scimitar, recently bought a new one as my old one from ~2019 (I think is when I bought it) had the inverse problem; holding right click to move camera would “drop” the hold randomly.

I own a lot of Corsair products and iCue is probably the least garbage peripheral software I’ve used over the years.

Take a look at the Logitech G600. It has 12 side buttons and a shift mode that lets you map 12 more actions to those buttons. It has onboard memory rather than needing a companion app. Linux compatibility is great as it can be programmed with Piper. Only downside is it's a bit large if you have smaller hands.

I would check the mice that are compatible with libratbag/Piper. I believe Logitech have a MMO style mouse with 12ish side buttons on the support list but I would need to double check.

With that said, Logitech have been known to use shitty switches in some of their G series mice. I had to resolder my G903 ones, and I took the opportunity to make other modifications (larger battery + glass skates).

I don't believe these mice support Bluetooth in addition to their proprietary 2.4 protocol either, so that might be a bit of a deal breaker, though I personally am not too keen on BT for wireless peripherals.

I’ve been very happy with my Corsair Scimitar Elite. It’s not wireless though, but I use a Razer V3 bungee to keep the cable convenient. I tried Logitech’s cheaper MMO mouse first and it felt cramped, chinsey, and the side buttons felt sharp and jagged. The Scimitar solved all those problems for me. Before that, I used a Logitech G604, which I loved, but the switches failed just after the warranty expired - not an uncommon problem for those Omron switches. Hopefully I have better luck with the Scimitar’s. So far so good.

I’m a windows-using rube, and I know Corsair’s iCue won’t run on Linux because it requires .net, but if you have dual boot or a VM or access to a windows PC, then you can edit profiles in Windows and save them to the mouse hardware. The only thing you’ll miss is auto-changing profiles when you open an application, so be sure to bind a mouse key to switch profiles, and assign RGB that lets you know which profile you’re in. I assume this method would apply to any mouse with hardware profiles.

I prefer wireless mice too, so I also use a M65 Ultra for FPS games. I find myself using the MMO mouse for desktop though, because having page up/down and home/end on the mouse is great.

Here’s the thing about Bluetooth: it’s usually slightly laggy and will often take inconsistent time to connect. It’s generally not great for gaming because of the lag especially. That’s why gaming mice have a usb dongle that uses faster sample rate (Corsair has Slipstream, Logitech has Lightspeed, etc.) I’ve used both of those and they always wake up in <1s. When I switch to a simple Bluetooth mouse for my work laptop, I definitely feel the lag. If you’re short on usb ports, you should have no problems using a wireless mouse dongle on a hub.

I’ve had two Razer Naga mice over the years for playing FFXIV. It works really well, and the first I bought still actually works - I just wanted the swappable plates of the Naga Trinity for when I was playing other games. I find them really solid to be honest and would definitely buy a third if I need to.

I can’t really speak for other mice, as I’ve not used others.

I loved my Logitech G602 back in the day if you can find them. Good grip, 6 side macros and DPI macros. Also wireless.

I have a Logitech G602 that works well, other than the middle click button wearing out a couple times on me (maybe I just use it a lot or something). I'm not sure about linux config though.

I have the Razer Naga and it works reliably well. Though I use the buttons for work-related macros like copy, paste, delete, and screenshot. There is software for Linux called OpenRazer that I hear works well with the Naga mice. My only complaint with the it is that it has RGB and isn’t wireless.

Edit: forgot to mention the main reason I went with the Naga was because they had a left-hand version.

Logitech G600 here, used razer in the past and their build quality is awful. Expect left click to start double clicking within 2-6 months of light to moderate use on those.

No complaints with the G600 on either windows or linux, use piper to assign keys on linx.

Take a look at the Azeron Cyro. It combines a high quality mouse, a ton of programmable buttons and a thumbstick, so it has everything you need for one-handed gaming in the vast majority of games. Might not be what you're looking for, but it's good to know that there are possibilities that you probably haven't considered yet. It even comes in a left-handed version.

I'm also currently looking into mice. The ROG mice are the only once one can replace the switches when then wear out without soldering. They also are compatible with piper on Linux.

I personally have the Corsair Scimitar which I like quite a bit but I had to get used to how to hold it. I honestly think that if I were shopping again today I would just go with the Naga. I think that the Naga is a "buy once, cry once" type of purchase. Mice with 6+ side buttons is just a really sparse product category and if you can manage you should try to get a few of these mice in hand and choose based on comfort

Edit: I specifically chose a wired mouse. The battery in my old Naga was so heavy that I ended up taking it out and just using it wired anyways. If you don't need to be un-tethered, I would avoid wireless but again, that's personal preference

Your mileage may vary with Razer products. I'm not sure how reliable they are now. But I have a Razer Naga Epic from over a decade ago and it's still kicking and going strong. I am hoping it will still hang on for another ten years at least. It's super nice.

Edit: I should also mention i probably got lucky? I've always heard iffy things about their products online. I'm not sure how mine hasn't had any issues yet, but I try to keep it clean. The one thing I do need to do is eventually lube the scroll wheel a bit. It has a little squeak when I scroll.

Used to use a Razor Naga and really liked it. But then in the end I just rebound my keys and went back to a regular mouse.

I love my Model O Glorious mouse. Adjustable dpi super dependable.