Looked at resolve when it first came out as a freebie. Was buggy and resource intense. Way more than i need. Bought Cyberlink Powerdirector and that is excellent. Not sure if it has a Mac version. I prefer Power Director to Premiere Pro, which I had used for years but got rid of when the Adobe subscription kicked in and my old Adobe products would no longer run. Only one I miss is Audition. Power Director has everything for normal video plus some things like tracking objects works better than in Premiere
i still use my old CS2 apps from time to time.
i'm PC, but my recommendations apply to Mac as well.