Not a specific site, but you can get the old internet feel using Tor Browser and exploring Tor websites. Last time I checked it out it felt like going back to the early 2000s or late 90s depending on the website. There are also some sites hosted on IPFS that looks like something from Geocities.
Yes I’ve noticed this as well. I think there’s some denial mixed in there. Right now the 3rd-party apps still work. They can still use old.reddit. Adult content hasn’t been banned on site and official app yet. The IPO and likely cash-out/sell-out that will follow is still some months away. A lot of the people are in the “this is fine” stage at the moment, similar to the situation over at Twitter. Most of them will see the light eventually. That said, there does seem to be a growing interest in Lemmy already.
Yup. I mentioned this on Reddit as well. OG Reddit vibes.
Unfortunately no. It’s been a few years since I’ve taken a look at it. But it shouldn’t be too hard to find Onion sites that list other sites. And there are Onion search engines out there as well. Maybe you could start here.