FWIW, notwithstanding VAAPI support in Firefox, Linux has made massive improvements in power/heat efficiency in recent kernels. There's much less of a starting

FWIW, notwithstanding VAAPI support in Firefox, Linux has made massive improvements in power/heat efficiency in recent kernels. There's much less of a starting-a-jet-engine effect in regular use if you're able to use a distro based on kernel 5.7 or 5.8.