I said it for many years that OS developers need to focus on over optimisations. If it wasnt a chip sgortage it would be the ever slowing progress on chip scaling.
But software optimisation helps all hardware and that doesnt drive sales.
Linux however, they dont have to worry about that. Maybe it is finally the era of Haiku OS as the ghost of BeOS rises!
There is almost no way any hyper optimized OS could protect you from Windsurf re-layouting the whole UI 60 times per second because of badly implemented spinner, and taking 8 GB of RAM to show it.