macOS UI capabilities aside, I have to mention that the latest Kubuntu 22.04 Long Term Support (LTS) 2022 release with KDE Plasma 5.24 is a fantastic upgrade. The system is snappy, much more so than under the previous Kubuntu 20.04 2020 release. Moreover, the 5.15 Linux kernel seems to be handling huge memory allocations for virtual machines an order of magnitude faster than the previous 5.4 kernel.

If you are tired of macOS, I wholeheartedly recommend giving Kubuntu 22.04 LTS a try. (You can always buy a second GPU and run macOS inside a QEMU virtual machine, 99% stable at native UI speeds with GPU passthrough.)