The only way to install Windows games on M1 Macs is to use a virtual environment but since Valorant’s Vanguard anti-cheat protection won’t work in virtual environments, you can’t play Valorant on an M1 MacBook or Mac Mini. You can’t play Valorant on an M1 Mac because Boot Camp does not work with the new Apple Silicon M1 Macs. Vanguard is a kernel level anti-cheat system which also causes problems for Windows users sometimes and virtual environments cannot support it at all. Vanguard will not work in virtual machines that run Windows and macOS side-by-side such as Parallels. This is because Valorant uses the Vanguard anti-cheat software which only works in Boot Camp. However, although there are different ways of running Windows on a Mac, Valorant will only work if you install Windows on macOS using Boot Camp.
There is no version of Valorant for Mac and you can only play it by installing Windows on a Mac.