Uefis have been around since ~2010 so at this point all distros understand how to use them, and at this point default to working perfectly with them.
Secure boot is the only real potential road block. You can just turn it off if you don’t care about it.
I’m not familiar with European pricing. But in general avoid refurbished thinkpads of that age. You’re paying twice the price for a laptop that someone wiped physically and software wise. If you’re capable of reinstalling windows and handling a paper towel then just buy a regular “used” machine from eBay or your l local facebook marketplace equivalent. There’s not really much that goes wrong with these machines, and that’s why people buy them.
That said T580 all day long. The L series are the cheaper built machines, and the 90 series in general are basically just 80 series but worse.