I think this is the key. Techy people can get around a LOT. Non-techy people are limited to what's made available in user-friendly format.
Case in point: several Bitcoin wallet providers are unavailable in the US due to "regulations." Are there other options? Sure. Are they practically accessible for newbies or non-developers? For the most part, no.
So in one sense, Bitcoin is unregulable, but in another sense it's HIGHLY controllable.
I think Nostr is a similar thing. Fundamentally, it might be accessible to everyone and resistant to censorship. But whether or not ordinary people can access and use it in censorship-free clients is an entirely separate question.
(For context, I'm mid-level tech-wise. I can write HTML from scratch and do some basic troubleshooting of simple script languages. Back in the day, I did some simple BASIC programming and have worked a little with Linux. But I'm not a developer or programmer and don't know any real, modern programming languages. I'm not even fluent with CSS. So not super-techy, but probably more knowledgeable than your average Joe.)