I'm fine with that. I'm not saying we should be able to "aquire" magic. I'm saying we're somehow incapable of even acknowledging its existence. If muggles can't perceive magic then what's the point of keeping it a secret.
Obviously that's not true because not only could Dursleys see magic but it was used on them, thus magic is observable and muggles would be trying to harness it because they wouldn't know they can't.
So it also somewhat makes sense why they'd have a secret society. But to keep it a secret you need know what the muggles are up to so they wouldn't discover your secret. You need something like an intelligence agency to keep track of muggles and intervene if they get close to the secret.
But you don't know how the muggle world works, so you don't know what the muggles are doing which means you can't intervene if they start to discover magic. If you can't prevent them from discovering magic why haven't they discovered magic?
I think you can play PvE Tarkov because the raids run on your machine (except for Streets). But if you're already willing play PvE you might as well play SPtarkov which does work on Linux and has a modding scene that offers a significantly better PvE experience.
EDIT: just a PSA that Tarkov uses Battleye, which supports Proton. Just like with almost every other game the only reason you can't play Tarkov on Linux is because the developer doesn't want to you to do that.