One thing I've been doing is doing random online classes instead of doom scrolling. There's a ton of free ones that you can do at your own pace and spend an hour or two each day learning new stuff. Just generally being more mindful and curating my media inputs and replacing algorithmic rage inducement with better stuff. Here's a few examples, but there's tons all over the web:
grumuk
joined 2 days ago
I'm having the same problem. There are bugs about it open with the developers, so presumably it'll be fixed at some point.
Search Icons are missing again #2227
Icons are missing from custom search engines added from settings #2261
In the meantime, I was able to make my search bar presentable by installing the "Search Engines Helper" plugin and manually adding the search engines that are having favicon problems, then going into the search engine settings and removing the checkmarks for the broken ones.
If you don't want to host your own data, take a look at TarSnap