I know it’s early days, but out of interest I thought I would try the beta builds now being produced for UC22.
Long story short, on a test NUC with a TPM it failed to install properly on first boot. I did some digging and raised an bug about what I found here: https://bugs.launchpad.net/snappy/+bug/1968356
I thought it may be worth posting here to raise awareness off the bug, and in case anyone else hits the issue.
Cheers, Just