I've been using 16 beta since it became beta, have updated every time i boot into zorin and have had no issues whatsoever. I had to go to 16, and i have appreciated the opportunity to test the alpha and beta versions, because of getting new hardware. 15.3 didn't have the support for the newer processor, nvme drives and the video card. The 5.6 kernel introduced a lot of support, but 5.8 was the minimum to recognize and support the hardware. Upgrading the kernel semi-broke zorin... only half supporting the hardware and not really integrating with the os completely. Other than the move to newer equipment, both versions have served me well and been more stable than windows ever was (blue screen... Again).
Win 10 has improved and doesn't blue screen as often as past versions, but drivers and software have both tanked windows (as well as updates). I can't say the same for zorin.
I setup a whole partition to only serve for Timeshift backups.