I don't put it on my router because there are certain things it would kind of mess with (for example: Netflix on the TV would get all weird and restrict content if it goes through a VPN, I assume it'd slow down online gaming on the Playstation and I don't really care if that's anonymous or not and so on.) I could probably split tunnel that stuff, but for me it's just easier to run it locally on the things I think need it (my laptop, phone etc.) than figure all that out.

That's just me though, it really all depends on your preferences/threat model I guess.

On my router (Wireguard). OpenWRT ftw

Depending on your routers capabilities. I have my VPN on my router and chose which device gets behind it or not. Works like a charm. If you want to access your server from outside your local network, you have to see if express vpn offers port forwarding.

I run QB through a docker container that’s an always on VPN

Then the xArr apps are in the same virtual network as QB. They run without a VPN

What are you trying to accomplish? Hide/anonymize your Internet/torrenting activity? Or access your LAN devices from the Internet? Because those are two different use cases for VPN. One requires paying a third party provider, the other - hosting a VPN server on your network.

calyxvpn, some random vpn from uptodown and thats really it until i get mullvad vpn

If your router can handle the traffic