I really miss the replaceable battery of my old Thinkpad. I had high regard for Lenovo for a long time, but somewhere around 2017 or so (wasn't buying laptops that often, I'm not sure what year it started) they really declined, and now Thinkpads feel like cheap plastic crapware with low customizability and a bunch of locked down components.
What frustrates me is that I bought 3 of them after they started to decline because I trusted the brand so much. My consecutive disappointments is one of the main reasons I no longer trust corporations or branding anymore.