I really depend on these applications for my startup

Then IMO you should either rethink how your startup is going to operate, or stay on Windows.

Onedrive is a Microsoft service, and in good old Microsoft fashion, they are using it as a way to soft-lock you into their ecosystem. That's a liability anyway, so you might want to look for alternatives - it's not like "cross-platform cloud storage" isn't a thing, so I would go and survey what's out there, compare the costs, and weigh those against that lock-in liability.

Teams works fine on Linux (worst case, use it in a browser - I do that all the time), and for clients who won't use anything else, you should be prepared to use it, but for anything else (especially internal comms), it's probably worth surveying the alternatives. Most of them work fine on Linux.

Rhino3D won't work on Linux; you may have some luck with Wine, but that tends to be hit-or-miss, and 3D performance may or may not be good enough. If Rhino (rather than "any industry-strength 3D modeling software") is pivotally important for your core business, then, see above, either rethink your core business, or stay on Windows. If your business could work with other 3D modelling software, then go survery the alternatives. Blender is open source, and people have made entire CGI movies in it, so that might be an option (impossible to tell without knowing your specific requirements though); and AFAIK there are also several commercial 3D modelling solutions that will run natively on Linux. Do some research, estimate how much it would cost to migrate your business over, and decide whether it would be worth it.

Should i maybe dualboot windows?

IMO dual booting is rarely convenient; the biggest issue is that you cannot run Windows and Linux applications simultaneously.

If I had a business that required some Windows software, and there was no way around having actual Windows running somewhere, I would do that on a separate machine, and then use whatever network stuff you need to share things between them. This way, you can run Windows and Linux stuff at the same time, without having to reboot; you won't have Windows butcher your boot partitions when you upgrade it; you'll be running actual Windows, on metal; and you can put up whatever defenses you need to isolate the Windows software from your Linux machines (running other critical stuff, like business adminstration software or whatever).