Comment by nutjob2
This is way I feel, but my last stop is 10.15 (Catalina) having started with 3.2. Modern macOS is just trash.
My goal over the longer term is to fully migrate to Android, especially desktop mode. There are several reasons for this but maybe the fact that given the typical hardware for Android means it's less likely suffer the terminal bloat of desktop systems.
I stayed on Catalina for a long time as it was the last version my Macbook Pro 2012 supported natively. It is a pretty solid OS, though it is harder to get Apple services running on it now.
I personally just use Sonoma now on my Macbook Pro M3 Pro.