The absolutely worst thing is that I cannot run XCode < 12 on M1, even via Rosetta 2. I do have few legacy projects at work that esentially cannot be ran on M1. The second thing is dual monitor setup... I have went through that and put a list of devices that will let you connect multiple monitors via displaylink technology - https://m1displays.com/ but it is something that shouldn't be a case at this pricetag.