It’s tough to find anything useful these days because of all the spam - especially due to AI, content. If I do use it, I usually use it to find something on Reddit.
It's extremely disheartening. I have no trust in Youtube staying accessible as a font of public knowledge. It just works out that way now.
Reddit seems hit or miss depending on the topic. Plenty of threads there where [deleted] asked a question and [disgruntled user] replied with something which has been replaced with random text by a fancy deletion tool.