Windows isn’t based on DOS, though. It hasn’t been for a very long time. Linux isn’t sandboxed. Userspace applications can be sandboxed. There’s a difference.

Why so many downvotes lol

it’s really sad that we’ve come to asking questions like this.

They have a large following on Mastodon so this doesn’t really make much sense. I’m inclined to believe that they left due to the hate they were getting because of the recent controversy.