This is probably the only forum where this rant will, be relevant, but as someone who has used ThinkPads for a long time (and has a business that sells them), I have to say the "back" and "forward" buttons on the newer keyboards are a terrible design.
I can't even count the amount of things I lost by accidentally bumping the "back" key before I disabled them with third-party software, and people we sell the laptops to have the same experience.
But out of all my years with ThinkPads, this is my only complaint.