I had a 2015 thinkpad, and even on that model the keycaps were so thin that two keys split in half due to normal use after 5 years. They were so thin that I cou

I had a 2015 thinkpad, and even on that model the keycaps were so thin that two keys split in half due to normal use after 5 years. They were so thin that I couldn’t glue them together, and lenovo as it turns out will not sell you replacement keycaps, only replacement keyboards. Luckily there are third parties which sell the keycaps.