Sincere thanks for everyone who had anythng to do with getting Thunderbird 102 into the sync this week!
As a long-time Thunderbird user, I had installed a copy of 102 in a folder I created in my /home folder as soon as it could be downloaded from their web site, but although many of the new import options worked well, there was not yet one for importing message filters, of which I've accumulated hundreds.
Now that it's in the repository, though, and being installed as the upgrade that it is, everything is totally seamless. And some minor issues I noticed in those early releases are no longer noticeable. (At least, not yet.)
Once again, thanks for doing a great job with Thunderbird this week!