Unfortunately, with so little information in your post I suspect no-one who posts here is going to have any chance at all of helping you!
We need to know about your computer (see this post for the detail we need), the exact version, variant and build of MEP which you have and what Background images you now seem to be missing.
Looked in templates looking for background images which i use often but they are not there anymore 1080 hd pictures looks like test images have gone also im using magix movie edit pro 2022, ryzen. tomahawk mb, only 8gb ram
When you installed MEP 2022 (which variant by the way, Basic, Plus or Premium?) if Plus or premium did you also download and install ALL the available additional content? I've just checked my installation of MEP Premium 2022 and under Templates>Image objects I see both Background and Test images. See my screenshot:
Also, please supply FULL details of your computer and put them into your signature (see mine below as an example); the very limited data you have supplied so far is not really a lot of help, sorry! e.g., exactly which ryzen CPU?
i sorted it myself and im noob without researching my pc history,solved, it i guess the update removed them , i reinstalled on help update menu in movie pro2022 menu.didnt expect the programme to have so many glitches ,im dissapointed in this magix edit pro, 2016 premium is nearly as good might even go back after this, i also lost projects because intros have failed to work and changed my project to unredeemable,