Not the OG, but I tried instances for awhile. After about two months I decided to self host it. The best instances for testing, imo, would be ones that have IPv6 on and nearest to your location for the host. They are aggregators so its tracking will be limited to the host of it. Even then, it’s a worthwhile test but self hosting can be as easy as installing docker, making a docker hub account, and pulling the prebuilt searxng image and going to the set port. That’s easiest way if you have reservation about data, but don’t have the time to configure the whole thing.
Started with Ubuntu at 12. Did a LAN boot to my mom’s laptop somehow, I couldn’t explain it if I tried. It was supposed to be on my PC. Didn’t work in the end and got grounded for “hacking” went back to it though a few years later at 16 and dived around Ubuntu and Gentoo. Never installed gentoo but I certainly kept trying.