Some of the nicer Perl software that I use currently is BackupPPC, which has been pretty solid despite the slightly subpar UI: https://github.com/backuppc/backuppc

And another interesting piece that I can think of was RemoteBox, which was pretty niche but still worked nicely: https://remotebox.knobgoblin.org.uk/?page=about

From the more popular packages, one should also mention exiftool, which was written in Perl: https://github.com/exiftool/exiftool

Probably also a lot of other pieces of software, though it doesn't seem like there's much of a large/active community around Perl, for example, have a look at: https://github.com/trending/perl?since=monthly and then compare it to something like: https://github.com/trending/go?since=monthly

In regards to other contenders, I think FreePascal/Lazarus should also be mentioned, since they're pretty stable, capable and perhaps some of the better ways to write desktop software!