Thinkpad X60T as a school device update: when using for notes, it seems to get about 5 hours of battery life, which I consider Acceptable. It's really nice with Xournal++ because I can just write like it's normal paper and arbitrarily organize and edit after-the-fact.
As far as actually doing assignments, that's when it starts to fall short a bit, since whenever I open up Firefox (my LMS sadly doesn't work on Netsurf) the battery life drops to about 2.5-3 hours. Overall I would absolutely use this as my main school device, especially with the nice 4:3 display, but it's sadly not good enough on battery life to safely bring it to school without a charging plan.
Oh also fuck HB1481 making it so all of this is for naught as I'm legally not allowed to use this for school.
It does normal web browsing really well, though: curling up on the couch with the device in portrait mode cuddling with my dog and web surfing is really nice and I plan to do it more once I get it back.
Oh!, and it's built substantially better than my T420 and the lack of a proper touchscreen is really nice (weird, I know, but I just don't like it when I accidentally touch the screen and it does something random--I much prefer the graphics tablet-only approach).