What’s the best way to record on Xbox? Not necessarily streaming but just recording the screen. Thanks.

Honestly, streaming is one of the cheaper options, since you can use your Twitch account, turn on the save past broadcasts option in Twitch settings, stream, and acquire video on a computer. You could also use a phone or camera to record your TV if your game community allows it, or purchase an external HDMI capture card, though they aren't cheap.

You should probably just buy the Elgato Game Capture HD 60 S which also only costs 170€ (~142GBP or 188USD) While you can of course get better ones if you have a bit more money, the HD 60 S should usually be enough...