@feditips When I was logged in to the old account, trying to access the list of followed *hashtags* (hamburger menu -> "followed hashtags"), it showed up as empty. That instance is on Mastodon v4.2.1.
When I tried using the "toot" CLI tool (which I had set up previously) to list my followed tags, I got an error back to the effect of that my account was deactivated. (Reasonable, in a sense.)
Account follows and followers seem to have transferred mostly successfully. A few are still pending.