So to answer some of the other questions that my post generated, I basically stopped using tablets. The kitchen tablet was replaced with a cheap Chromebook. My travel tablet was replaced with a MacBook Air 11 2015 that I got on eBay, and installed Linux Mint on it. I believe the 2015 MacBook Air model is one of the last MacBooks with a replaceable battery, and it is still one of the best 11" laptops ever made.
My other laptops are a bunch of Dell Latitude 7000 series and Dell Precision series laptops, running Ubuntu MATE or Linux Mint. All of those have replaceable battery, upgradable RAM slots, and replaceable SSD or NVMe slots. I cannot bring myself to buy a laptop with a glued-in battery.