Welcome back! I recommend binging the all the Perl conference and workshop videos online that are heavy on actual Perl examples, there are plenty. For you time efficiency, I would skip anything that talks about Perl 6 or Raku for the sake of time, since you said your interview is coming up. The hard core Damian Conway videos are probably a good investment. Anything related to Moo, Moose, MOP or whatever (unless your potential employer mentioned them) is going to not focus well enough on core Perl syntax to refresh your memory. But if they mentioned them, you should be aware of the difference it creates in the code. The recent
class stuff in 5.40 is relevant. Poking around on
https://blogs.perl.org (and here!) is probably a good idea.
What's new in Perl 5.40
https://www.youtube.com/@YAPCNA/playlists
https://www.youtube.com/results?search_query=perl+fosdem