Anything from a used thinkpad to a used Mac fits your requirements
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What are you going to study in college? Anything that might benefit from particular specs?
Biomedical sciences
If you’re looking for a typewriter/browser I picked up a thinkpad gen 1 x1 nano for 1k usd recently. 3:2 high-res display, dual USB4 and that’s it. Excellent battery life and runs Debian stable like a champ. An M1 MacBook Air should go about the same and works great for the wife.
Are you doing any modeling eg. renders or high-res pictures? Does your school recommend anything? Anything else important for you?
I’d like it to last at least 4-5 years. From what I’ve seen I’m leaning towards getting a used or new thinkpad not sure of the model though
You could try looking at what Chuwi has in stock. Heard the build quality is good and the price seems reasonable.
Either way, what I would recommend is getting the smallest RAM and Storage possible and replacing it with better ones yourself. Usually, that comes out cheaper. It's also the easiest upgrades you could do. Just make sure it is 1) is actually cheaper and 2) possible, since some companies solder those components to the motherboard.
Also, knowing the use-case is very important, you haven't provided the info.
Get something lightly used on eBay. Seriously. You can get a solid convertible laptop there for half the retail price.