High CPU usage when doing camera orbit.

[micheus]

It's interesting that we don't notice that on Windows. The CPU usage indeed increases on mouse movement, but far away to make the CPU reach 100%.

In the fractional scaling added to Ubuntu 20.04 (link) they supposedly improved this:

Fractional scaling doesn't currently work when using the proprietary Nvidia drivers though!

There's also improved performance. There's lower CPU usage for window and overview animations, JavaScript execution, mouse movement and window movement (which also has lower latency now).