Then get an external monitor or wait for the M1 16''. I've spent years changing setups and this is my conclusion:
-If you edit on Premiere Pro: build a WIndows PC
-If you edit on Final Cut Pro: get an iMac or the new Mac Mini M1
-If you edit on Davinci Resolve: both PC or the Mac M1 are good
-If you need a laptop, get a Macbook, the reason is if you edit on the go (like myself), Macbook keeps the same performance on battery, whereas with other laptops you need to plug in to have a good performance.
P/s: the new M1 chip on Apple computers is insane...