Couple things. Firstly watchtower is no longer maintained. An alternative is what’s up docker(WUD). It mostly functions the same but with a little more setup. I found this to be a near drop in replacement for me.
Secondly as someone who’s consistently had a hard time with searxng, I would recommend degoog instead for aggregate search. It just feels so much more modern and usable. It’s immensely more simple to setup as well since configuration is mostly done in the interface instead of some several hundred line config file.
I’ll say the same thing to you as I said to them back then. You have to provide proof for claims like that. I really want that to be true and something to be done about it but I need evidence first.