Tried using this recently. Even though I use vim daily I haven't made good use of Vimium yet. In fact I found it more annoying because it naturally breaks sites that I do know keybindings for like YouTube.

Overall I don't want to come across as critical of of something that just needs a little effort to use, more of just setting expectations.

Normally this would be less of an issue but for me, I ran into this problem while on my rowing machine, and I didn't want to stop to fiddle with keybindings.