Joko:
I suggest that you might find it worthwhile to invest £2.60 in the current issue of Computer Act!ve magazine. (It's dated 6-19 October, so it should be in the shops for a while yet. All of the big supermarkets seem to stock it, so it shouldn't be hard to find).
The magazine contains an extensive (eight page) article, explaining about exactly what it is that Windows 11 requires and looking at the question of whether or not it's actually a good idea to install it anyway.
My (generally well-specified) laptop can't run it, which isn't surprising as Microsoft is still selling their own brand new top-of-the range 'Surface' computers, at a staggering £3.5k, which don't meet the minimum specs! Even if I had a machine that was capable of running Windows 11, I very much doubt that I'd install it. "If it ain't broke, don't fix it" is a maxim well worth remembering where Microsoft's so-called 'upgrades' are concerned, in my opinion!