OBS Studio
Also on WindowsRecords your screen and streams live to YouTube, Twitch and more.
Installs from the OBS team's official package source.
Good news: OBS Studio runs on Linux. It's the same app you use on Windows, and TuxPick installs it for you from the OBS team's official package source.
Install OBS Studio with TuxPickIt works on Ubuntu 22.04 and 24.04, and on systems built on them like Zorin OS and Pop!_OS.