I'm sorry but the 'rivals' are close to almost too late. Apple works around 3 - 4 years ahead of the competition. By the time the 'rivals' catch up with getting M1 performance on an ARM processor, Apple would already have released an M3 or M4 Mac Mini or Mac Pro.
Microsoft is probably the closest with the SQ processor in the Surface line-up but is certainly not as performant as the M1. As for everyone else, this plan to 'catch up' might as well call it a day.
The M1 chip seems to have dismantled the whole competition for another 3 years, however the development ecosystem is still unoptimised and very early. I'm waiting for an M3 or M4 Mac and when the software is fully optimised for Apple Silicon.