Be aware that thumb drives are subject to failure without notice.
I would recommend you go out and buy a stand alone 500gb or 1 tb ssd and use that to backup things you don’t want to loose like pictures, documents, etc.
Failures aren’t as common as they used to be, but they still happen. Nothing worse than having family photos saved in one spot and have a a hardware failure and loose them.
Something else to consider is that older laptops/desktops can be made much much faster by maxing out the ram and then dropping a ssd in it. You can often take a 3-5 year old laptop (which is REALLY old in the it arena), drop in a ssd and gain near new like speeds. Especially if you just use it for internet and email.
I’ve got a couple laptops and an older destop that I dropped max ram and ssd in to and am still using them today.
my oldest is an HP mpc8277c from roughly 2000. Dropped in a quad core (was an option when new), bigger power supply, 1 tb ssd, gtx 660 graphics card and maxed out the ram and its damned near as fast as my brand new gaming laptop. It has its limitations (like under HW specs for newer games), but it does everything I need it to (like 3d modeling and video editing).
Good hunting.