It’s not a permanent one and it works for the time being, can’t see the reason for the downvotes honestly.
It's just a bad idea in general. A better option would be to patch the binary to use 15. They both have the issue of forcing paru to work with a library it wasn't explicitly designed for, but symlinking (or copying) 15 to 14 forces the hack to be "system wide" instead of restricted to a single binary
as well, your solution is "temporary" only if you remember to fix it, vs patching which is (by default) overwritten the next time paru is updated
it "works", but it's not something i'd recommend someone else do
I genuinely thought symlinking these files was standard because how many people I have seen suggesting it. I have had this issue so many times when I needed to that one program updated but there's no newer libraries in AUR. Surprisingly, I haven't had issues and I've been doing this past 5 years on my personal system.
So I guess I consider compiling from source next time.