When I created my account way back you had to apply and wait, then IIRC they deleted plenty of accounts in order to “clean up” and you couldn’t really register anymore, but that was a long time ago so it’s possible (it’s also possible that I’m misremembering). Also, I don’t think they’ll bother changing their anti-cheat from userland like people were afraid of years ago, but userland could still create problems as any attempts to bypass their new stuff (if they exist) could flag your account, and it’s something we’ll never know until the ban waves start coming in.
I see. Wouldn’t hurt to have one for future patches regardless.