Noob here, can someone why newer Ubuntu isn't working on some older hardware for me any more? Obviously something changed in new versions, but what?

>a Macbook from 2010, picrel CPU
>22.04 worked perfectly on it
>but 24.04 has problems
>firstly, installation problems
>even fully updated, some drop down menus are glitchy, don't display properly
>both on Wayland and Xorg
>also trouble initially logging in after first install when set user to auto login, screen blank with a cursor, had ot bring up a terminal and edit a config file to disable Wayland by default, then restart, only then could I actually start to use my freshly installed OS
>wanted to check if it's a quirk specifically with 24.04 or it's something permanent going forward
>try 24.10
>installer doesn't even work properly, looks like it's loading, but then gets stuck on a screen with an unmoveable mouse cursor and never completes loading
>try 25.04
>doesn't even look like it start to successfully load, just get stuck straight away on a screen with an unresponsive keyboard cursor in top left
>USB flash drive indicator light keeps flashing as if it's working, but nothing ever happens
>after 30 mins, after 1 hour
>tried 3 different USB installer creations
>1x default rufus, 1x rufus after changing a setting regarding older BIOSes, and 1x default etcher
>same problem on all
>like I said the 22.04 installer and end product still works perfectly fine on it
>and the 25.04 installer works perfectly well on a different, modern computer

So I guess it's lights out for this old Macbook, just wanted to keep it on the side to have a Linux system in case I ever needed one at quick notice. I'll put 22.04 LTS back on it, maybe even activate Ubuntu Pro so it lasts until 2032, will probably get rid of it by then so that's long enough. Tbh I might even chuck it away now.
But still, Im just curious intellectually as to what happened to why it gradually stopped working on this hardware. Buffed it up to 8GB RAM so thats not it.