I use Mint as my desktop of choice, have been a fan for a few years after I moved off of CentOS. The installable ‘mintupgrade’ application allows upgrading to the next release. When I was running v20 and wanted to upgrade to v21, mintupgrade failed and failed and failed. I did a lot of manual intervention to help it along, but it never really worked. Getting to v21 was a wipe & install & restore. Now v22.1 is out and I ran the updater on my blade laptop. The mintupgrade program has matured so well - it’s asking logical questions, will downgrade packages or remove apt sources versus puking on them. It just worked. Then I did the same on my desktop, and it just worked. Color me stunned. And pleased. But mostly stunned. 
The desktop took over an hour, the laptop took around 45 minutes.