Specifically on Linux Firefox v130.0, installed from the Flatpak.
Open bbb_video_avc_frag.mp4 in the Web Viewer, and observe a stutter around 12.5s. This has not been reproduced on any other platform/browser combination.
Our investigation (that's, @jprochazk 's ;-)) so far yielded no workaround on our side. The next step is to file this against Firefox and link to that issue from here
Specifically on Linux Firefox v130.0, installed from the Flatpak.
Open bbb_video_avc_frag.mp4 in the Web Viewer, and observe a stutter around 12.5s. This has not been reproduced on any other platform/browser combination.