Glad to have helped you out. Whatever you decide to get, I highly recommend you give Linux Mint a try next. I started with ubuntu, went to mint and haven’t looked back since. Its been my daily driver for half a decade now and has worked absolutely perfectly with every laptop and desktop ive ever owned. My elderly parents use mint without issue every day.
A quick cheat sheet for understanding computer spec lingo:
Ram:
4gb = bare minimum
8gb = pretty good
16gb = awesome
Intel CPU cores:
duo/two cores = bare minimum
quad core/four cores = pretty good, most common
more = awesome
Intel CPU processor
i3 = bare minimum
i5 = pretty good
i7 = awesome
Intel CPU processing speed measured in gigahertz ghz
2.x ghz = average
3.x ghz = awesome
hard drive
HDD = Slower and more limited lifespan but ok, tends to be higher storage space than SSD for cheaper
SSD = Faster and much longer lifespan, usually only goes up to 256GB but its possible to find 512GB. More expensive than HHDs
Harddrive Storage Space
100GB = bare minimum
256GB = average
512GB = pretty good
1TB = Awesome
Upgrading
You can have a computer shop upgrade harddrives to a multi terabyte SSD as well as replace the batteries for you if you do your research and provide it for them.
Another big win for thinkpads is theres lots of documentation on upgrading, and you can order official parts right from lenovo vendors through their website Which is huge for replacing batteries when they degrade to the point of annoyance. Thinkpads have an external battery and an internal one both you can replace to get supposedly about 10 hours of battery life. I get like 3 at this point so I may be considering this option soon. The Linux command TLP can help you get a good estimate on how degraded your batteries are.