I don't know if this is the place for this feedback. So it's time for a gamble.

I think it's time to have a think about how thumbnails are shown to the user. Right now images gets stretched, cut off and squished depending on where you look. And I personally find it kind of messy at the moment.

I've provided some examples on how it's shown in different places. Where it's a good mix between 4:3 and 1:1 frames. The most pictures are on the same avatar that is uploaded with the tool on the website that crops images to 1:1.

The cropping in the recently used list makes sense. Just added it since it's one more way.

I could only find one example for worlds. And that is that it's squished in the menu wing.

I have one avatar with a 4:3 image on a pedestal. And that gets squished to 1:1 instead. So 4:3 is not a 100% solution either.

I just wish it was more consistent. Ans less stretch etc. I'd personally go for just keeping an images ratio in the menus/website and just put a background on it if it doesn't fit nicely.