Did you losen the idler tension screws? TPE requires that the tension is very very light otherwise it tends to buckle around the gear before entering the nozzle tube. Reducing retractions to a minimum is also always a good idea, as well as limiting the max flow rate.

What is driving the bed height? Lead screws? Check if they are straight and/or wobble around as they turn. Any imprecision in bed height due to mechanical issues with the Z axis would also translate into perimeter width variations.

I can only guess the print orientation but it looks like curling to me. Basically on that side, the part cooling fan (or lack thereof) is making the plastic of overhangs curl more than on the opposite side which gives you this bad surface finish. Otherwise maybe a retraction issue but that would probably show in other places too (oozing).

Okay so how is it with Cinammon, mate xfce? I know it's crap with Wayland and Xorg especially with nvidia drivers.

Thanks for all the suggestions! I switched to qbittorrent and it works nicely for now. The web ui is fine for the little I use it so all good! I'll report if something starts failing again which would indicate another issue with me setup.

Seems to work very nicely and it's much more responsive than transmission. Great, thanks!

I'm not set on transmission, I tried qbittorrent just now and it seems to work for me. But thanks! I anyway use a separate container and network for vpn.

Thanks for the explanation

Oh I didn't catch that my bad. I hope they get a work computer where this kind of stuff doesn't interfere with private life!

Got in touch with ProtonVPN support and asked about this. Here's their reply:

Our engineers have conducted a thorough analysis of this threat, reconstructed it experimentally, and tested it on Proton VPN.

We concluded that:

1. The attack can only be carried out if the local network itself is compromised
2. Our Windows and Android apps are protected against it
3. For iOS and macOS apps, you are completely protected from this as long as you're using a Kill Switch and a WireGuard-based protocol (our apps use them by default, and if a user wants to use something other than WireGuard derivates, they'd have to manually set it up). Note that Stealth, WireGuard TCP and Smart protocol on iOS/macOS are all WireGuard-based.
4. For our Linux app, we're working on a fix that would provide full protection against it.

All seems to indicate something related to pressure advance, whereby the printer thinks it needs to extrude less because of some pressure buildup but it underestimates how much is really needed. Does it happen if you print slowly? E.g max 15 mm/s or less.

Neon explained it better than I ever could! I hope their answer satisfies you