Not simple but worth the effort IMO. Totally agree with your list, use FOSS when possible, Adguard Home makes for great DNS filtering, I’ve been a fan of Kagi for search, gotta pay a little but get a ton of control over your search engine.

If someone is comfortable with computers I highly recommend looking into a VPS, you can get one cheaper then cloud services and use tools like Yunohost to make getting started self hosting not hard.

Good thing I cashed out after only losing most of a couple hundred dollars 😆😭

All solved with one simple step, DON’T INSTALL THIS GARBAGE!