I installed the official Reddit app and went on it to see what the old place was looking like now. My inbox was filled with spam. The “home feed” shows subs I never subscribed to. There are so many ads. Between the ads and the the extra subs in the feed, it’s hard to just scroll. I also noted a lot of spam in some of the subs. Maybe they are subs with no mods? I’m not sure what’s up with that.
I think you’re either overselling their defensive capabilities (like mods there do) or the solutions you used are just leaky and awful. I’ve found Tor to work very well, less complicated than the solutions you presented since it’s basically an all in one. I had an account on there for almost a year only through Tor so it works well, but I lost the password and since I used a throwaway email account is gone for good, but still not shadowbanned.
I have 4 other accounts (I’m not going to say which ones they are, makes the job of admins harder) still been going for over two months.