I am also running R Studio 2021.09.0 (Build 338) and R 4.1.2 on a Mac M1 Monterey. My R Studio is working fine, but I am getting the exact same error message when I try to run radian.
I am hoping someone will answer your question as I may help me as well. With the M1 chip I am never sure which version to install. Whenever I see 'arm' I always think Raspberry Pi and I hope my Mac M1 has a more power chip than the Raspberry Pi.