Hi, Stefan. I'm the guy (Pedro Timóteo) who bothered you on Facebook some time ago about the status bar problems in the .z5 version on the Spectrum Next. After Garry Lancaster added a fix for that in Zxzvm 1.16, the problem with printing only the necessary parts (leaving parts of a previous room's name if it was longer) was fixed, but the previous releases (6 and 8) were printing one extra character on the status bar, which moved to the next line (covering any actual text character there).
I'm happy to report that release 9 seems to fix that, too, and is looking perfect on my Next! (Though the fixed Zxzvm isn't yet part of any official release of the Next distribution, you'd have to get it from Gitlab, so it's probably better to keep recommending the .z3 version for now.)
I did find a typo -- there's an "occassionally" (should be "occasionally", just one S) in the response to the HELP command. But I don't think this demands a new release. :)