You mentioned you preferred ungoogled because "Ungoogled version has more useful flags for user's convenience," so when i asked "which flags do you use," i meant "flags available in ungoogled Chromium, but not in vanilla Chrome." So: which flags, available in ungoogled Chromium, but not in vanilla Chrome, do you use?
I was trying to recreate your voltage spike issue, and you don't watch vids in browsers, iirc. Should i reproduce an issue you've never experienced? But sure, when a GPU is actually used, core voltages go up from a state in which nothing is being done. This is perfectly normal & shouldn't cause concern. Your GPU will be fine, lots of us (most?) have HW acceleration enabled, that's simply not how GPUs die. Worry not, GPUs are hardy