I’ve lived, and I still live, in both Mac and PC worlds. It’s no wonder you’re having cold feet – Mac is going to be uncomfortable at first. But if you bought a Mac Studio and use Resolve, I believe you will ultimately be happy. Get an external SSD for your data, connect via USB-3/Thunderbolt 4, and fly through your edits.
But you are right; the transition is tough. So if you want to stay in Mac-world, you should embrace training. I’d recommend courses (free) at your nearest Apple Store. I’m sure there are also many great videos online.
Software installation goes like this in Mac-world.
1. Download DaVinci Resolve. A file should appear on the lower left of your browser window. Click to open and enable installation.
2. Or, click on Finder, go to Downloads, and find something like DaVinci_Resolve_Studio_18.0.4_Mac.zip. Click on that and enable installation.
3. Go to Finder/Applications. In the DaVinci Resolve folder, click on DaVinci Resolve.
I feel your pain in transitioning. I believe you can return your Mac Studio if you don’t want to bother. But fwiw, this ex-PC person finds that the Mac Studio/DaVinci resolve combination is pretty darn great. Give it a shot. Good luck.
Bob C