That depended _very_ heavily on your graphics card at the time. In 2001, I could get X to crash on my work computer if I shook my mouse too fast. At home on my matrox card, yes, it was rock stable.
EDIT: Also, Slackware was rock solid and it crashed far less than SuSE/Mandrake.
https://wiki.archlinux.org/index.php/Hardware_video_accelera...
The point is that modern GPUs have hardware decoding for common codecs, and will use far less power than CPU decoding. But the major browsers on Linux (Firefox and Chrome) disable hardware decoding on Linux, because $PROBLEMS.
So, you end up with battery draining CPU-based 1080p decoding. And even more battery draining or choppy 4k decoding.
And it still happens occasionally, while my Windows 10 userspace drivers just reinitialize instead of locking the OS.
No swap, some swap, huge swap, swappiness=0, zram - nothing helped me.