It is possible with a little bit of work, you will have to set up grub to boot the SSD drive, there are a few how tos depending on your setup

Maybe, but I keep seeing the same complaint over and again from people, I do t really care about it for myself, I have a separate account for the naughty stuff, everything else is blocked on my main account, but sometimes nsfw doesn’t mean porn, maybe it’s explicitly described violence, or something else, not just porn. Maybe I would like the option to have nsfw content presented to me that isn’t people getting fucked. More nuance in the content delivery would be appreciated

Better nsfw content filter (ability to filter porn vs general nsfw content such as violent content or just triggering based on context

Content search, search by specific subject or topic, keyword, etc