I just emailed support about this before seeing there’s a forum topic. I guess in general, the first letter of the tool’s name is the key to switch to that tool.
Searching for the terms “sketchup basic navigation” has a lot of noise generated by partial information, covering 4 commonly used tools. That is frustrating that kind of query doesn’t direct me to a SketchUp official manual of sorts.
Then I search for “list of sketchup hotkeys”. And was surprised to find exactly what I needed as the top result:
Now if I bookmark that, I’ll be able to find it quicker next time.