I use my own player for playing videos. It’s not very optimised (video frame decoded with VA-API gets downloaded to my own frame structure in main RAM, which gets uploaded to SDL texture and only then displayed—the proper way is to allocate EGL texture once and use it both for VA-API decoding and displaying; or maybe the same but Vulkan and semaphores all the way) but apparently playing back 25fps video even in that way takes less CPU than updating one line with play time in gnome-console at about 10fps.
I have a feeling something went wrong with the modern software…
There is the elephant in the room.
Not really, I was not running browser at that time.