Fedora doesn’t ship video accelerated mesa drivers(which are open source) by default and is a bit of pain in the ass to setup. They do that because they are very much tied to IBM and have to respect software patents(maybe for legal reasons). This is for intel and AMD graphics and if you take fedora as plug and play, browsers will use cpu to decode vidoes and and heats up as if i’m gaming when i play a simple video.

I use fedora too but hates this specific thing. Most other distros ship with official mesa drivers.