obs-vkcapture VS obs-kmsgrab

I can't speak for Chrome nor VMWare, but Firefox and OBS have received "Wayland native" screen capturing functionality, through XDG portals and Pipewire, as far as I'm aware.

As a side-note, I've recently discovered a really cool project[0] that enables incredibly fast screen capture for OpenGL and Vulkan applications, mostly tailored to games. Tried it with a bunch of stuff and it works much better than both X's and Pipewire's screen grabbing. I can actually capture videos at my monitor's native refresh rate (144Hz).

[0]: https://github.com/nowrep/obs-vkcapture

Just use this: https://github.com/nowrep/obs-vkcapture

Hello, so I use this OBS plugin obs-vkcapture. I use it as opposed to the built-in Window Capture, because with that option I would keep having to alt-tab back into OBS to select the game I want to record. This plugin is basically the "Game Capture" feature on OBS Windows brought to Linux. It makes it to where I can put a Steam launch option obs-gamecapture %command% and launching the game will make its executable show up in the Game Capture source, so I can just press record on move on, no more opening OBS to select the game's window and risk nuking it when alt-tabbing. It is much more performance efficient and it's a package/patch that is included in GloriousEggroll's Nobara distro's build of OBS as well. I however use it on Arch from the AUR, it's the only AUR package I use in fact.

I was using https://github.com/nowrep/obs-vkcapture but I also had Proton-GE 7-49

Back in december when I tried I had some success using this https://github.com/nowrep/obs-vkcapture

Additionally, I'd like to use Game Capture in OBS if possible via obs-vkcapture. If using this with gamescope, where do I actually put the variable or obs-gamecapture command? Does it wrap the entire gamescope command, or does it get wrapped by gamescope?

I think you mean obs-vkcapture-git. It lets you capture a window through Vulkan. Here is also its github repo for more informations.

I have spent a few hours trying all kinds of dependencies on Fedora 36 Workstation trying to get obs-vkcapture to compile. I have found the exact ones and hopefully it helps someone in the future: cmake gcc gcc-c++ obs-studio-devel mesa-libGL-devel vulkan-loader-devel Here is a convenient command to install all at once: sudo dnf install cmake gcc gcc-c++ obs-studio-devel mesa-libGL-devel vulkan-loader-devel

Well, it can (Firefox is one example of dma-buf-based screencapturing in x11), but AFAIK obs still doesn't have such option out of the box (there is a plugin for that - https://github.com/w23/obs-kmsgrab, but I haven't tested it as there is not need for it on sway).

NVFBC won't work on PRIME, because with PRIME, your integrated GPU is driving the display. You want something like https://github.com/w23/obs-kmsgrab