I've been using regex decades, but it never really stuck to do anything too complex, it was the perfect intersection of difficult and infrequent. ( And also variable - PCRE vs others customisations / non-regular parts, etc ).
I am very glad that I can now just ask claude for a regex to achieve my intent.
Does it mean I'll never master regex? Yes it does, but decades has shown that was unlikely to ever happen anyway.
Regex came up so infrequent that I found myself referring to documentation whenever I needed to use it. But I always wondered, what are the jobs or roles that use it so often that they have mastered it.