Temp file folder - can I delete old files?

There’s a folder named Temp (user/Library/Application Support/BFD Drums/BFD3) with a bunch of .bfd3 and .png files going back to April of this year. Is it safe to delete the contents? There’s about 500MB worth in there right now.

Still looking for an answer to this, can anyone comment?

Yeah, those are garbage, you can delete.