So I found out that security comes with restrictions (again).
I have two LMDE systems on two different computers.
On one the Brave and Firefox were installed via Flatpak and youtube plays with delay - sound and pictured don't align. The sound goes first and the visual lags by a number of seconds.
On the other one, when I installed it directly from debian repositories (so it seems, it was some time ago), where it isn't sandboxed like via Flatpak, the youtube plays properly. But the security risk is higher here, if I get it right.
What do you suggest to do? Both machines have 16GB RAM, plenty of disk space and one has intel i5 of 9th gen and the other has some 11th gen stuff (in he post footnote). So hardware isn't a problem.
I have two LMDE systems on two different computers.
On one the Brave and Firefox were installed via Flatpak and youtube plays with delay - sound and pictured don't align. The sound goes first and the visual lags by a number of seconds.
On the other one, when I installed it directly from debian repositories (so it seems, it was some time ago), where it isn't sandboxed like via Flatpak, the youtube plays properly. But the security risk is higher here, if I get it right.
What do you suggest to do? Both machines have 16GB RAM, plenty of disk space and one has intel i5 of 9th gen and the other has some 11th gen stuff (in he post footnote). So hardware isn't a problem.

