Hi rigo
It’s not a dumb question at all, but it can be tricky to answer since, as usual, there’s so many factors at play. I’ll try to answer some of your questions, but you will need to do some research from other sources as well, and if you read this entire topic from the top, there’s a lot of info and pointers.
To start backwards: Should you get Windows or MacOS? That’s up to your taste and preferences and experiences with the two. VCV Rack runs fine on both, and people in this forum will run both and have their opinion. My own is that MacOS is superior regarding audio and MIDI applications, and in many other respects as well.
So, regarding getting a new machine for VCV Rack. First of all, if you’re firmly set on getting a laptop and not a desktop then you get a laptop. Otherwise I would always recommend a desktop for Rack, because of better cooling and a bigger screen, and probably beefier graphics, which Rack makes use of.
An M1 laptop or desktop will certainly relieve your heat and fan problems you have now, that’s for sure. Also the M1 CPU cores are very powerful, and since Rack enjoys single-core performance it’s a good match. The integrated graphics in the M1 is also very powerful, something that cannot be said of the Intel integrated graphics, which might be part of your current heat problems.
Per my test above, Rack runs very well on the M1 machines. Would, say, an M1 Macbook Pro, run Rack faster than your current MBP, aside from running cooler? That’s a tough question to answer and I can’t make that direct comparison for you. From all the videos I have watched, where people compare the Intel Macs and the M1’s, and knowing about the requirements of Rack, I would say there’s a good chance it will run faster, but I can’t promise you and would advice you go out and look at YT videos of people comparing performance.
Personally, I would choose the M1 Mini over the M1 MBP, and the M1 MBP over the M1 Air, simply because of more cooling so a bit more headroom for pushing it to the max. But as per my test above, the M1 Air works great for Rack, but you will have to decide whether my test indicates it’s powerful enough for you.
Also, by all indications, Rack and all its plugins run just fine on the M1, via Rosetta2, and I haven’t yet heard of anyone reporting a particular plugin that won’t work, but it’s not completely inconceivable, that in some plugin, some developer would have used some x86 specific code, that will not run well on the M1. And this is obviously also a consideration, if you run VST’s inside the host module on Rack. Just covering my ass here
Go to https://doesitarm.com/ and google for VSTname/softwareName + M1, to find info on whether things will run on M1 or not. My sense is that the vast majority of x86 software runs fine under M1+Rosetta2, without you even knowing it, but there are exceptions, and it seems most of those are in the process of being fixed.
You will just be downloading the regular VCV Rack for x86/Mac and the plugins for that. It runs great under Rosetta2 and remember that all the plugins are compiled for x86. You can of course experiment with other, native M1 builds, but remember that all the plugins need to be rebuilt for that as well, in that case.