YT and Wikipedia
Those are the two cornerstones of modern web. However, recently Bing got an LLM upgrade, so that tool is beginning to compete with those two. Learning stuff by asking questions seems to be working really well for me.
Mhm, I do this too! It really helps in finding answers to very specific questions
Lame answer but YouTube. Channels in the vein of freecodecamp.org and Stanford Online are incredible. Any skill, hobby, repair, or question I can think of probably has videos there.
Does Wikipedia count? Then Wikipedia.