Or why it's important to mentor others and not stay in your own bubble.

This is a nice way to frame the three activities. They help people progress but in different ways.

Interesting take on mentorship vs sponsorship. I indeed tend to mentor more than I sponsor. Definitely something I need to adjust.

Looks like a very interesting extensions to help people get into a codebase or to record tutorials.

Lots of good advice on how mentoring can be done. There are enough of them that you can pick and choose what makes sense for your own context. I like this kind of toolbox approaches.

Interesting ideas on how mentorship can be organized in a company. This is obviously examples coming from a specific context but still, the whole time bound and matchmaking approach is a good food for thought. It sounds a bit too mechanical and systematic for my taste but I guess it makes sense in their context. A few good extra resources provided as well.