ArcGIS online is absolutely not an alternative to ArcGIS Pro. Not even close. Nobody spending more than a small amount of time using GIS beyond being an end use

ArcGIS online is absolutely not an alternative to ArcGIS Pro. Not even close. Nobody spending more than a small amount of time using GIS beyond being an end user is going to find online a worthy replacement for Pro. It's a publishing platform with a few analytical tools that each cost credits to run, not a spatial sciences package. Online is good for data capture and integration, but not for someone who wants to perform regular or more complex analytics. There are currently no plans to rewrite ArcgGIS pro for M1 mac hardware according to ESRI. The move to Pro should have made it much easier to do, but its still a huge task. The ESRI community have recently had a lot of success with M1/2 hardware, Parallels 17+, Windows 11 arm, and ArcGIS Pro. Just note that you won't be making 3d videos with it comfortably. Everything else seems to be working very well.