This is correct. I'm a UK Discord user, so I've been subject to these requirements for ~6 months now. It's basically nothing - I'm in near 50 "servers", of them all I only really can think of one channel in one of them that is flagged "nsfw" and thus blocked to me as I never ID'd myself.
If you don't use Discord as a source of "nsfw" content you can comfortably ignore these requirements. I do realize there are some communities that may fare a lot worse than my gaming / software dev interests, and may be falsely claimed "nsfw" just for their existence. Which yeah, that absolutely sucks.
Microsoft intend to deprecate V2 and move fully to V3 basically as soon as they can, pretty much in lockstep with Google:
https://learn.microsoft.com/en-us/microsoft-edge/extensions-...