On the fascinating dilemma of anti-cheating measures.
Valorant's particular scheme, while seemingly draconian, is also somewhat warranted if they want to ensure fair play.
Yet nothing can prevent all cheating entirely; some next-level thing would be to manipulate the RAM physically outside of the OS running the game itself. Sure, that's not prevalent right now, but that's pretty much how console cheating works (or at least it has until now).
My gut feeling is that there is no real solution. People just are going to be jerks, and no amount of technological measures will stop them, only perhaps slow them down. The best that can be done is to implement community systems to attempt to fix the status quo, though I'm doubtful that scales too well either.