For live streamers and video creators, you’ll find that FFmpeg supports nvenc and VA-API. These are features found in GPUs that perform decoding, encoding or filtering to offload these compute-intensive tasks from the CPU.
vaapi with the iHD driver (intel-media-va-driver-non-free) seems to work very well here, even with the snap version of vlc …
a really annoying bit is that fractional scaling messes up switching to/from fullscreen, running my 4k 13" laptop screen with 150% makes fullscreening any app loop over various resolutions until if finds one that it feels suiting:
