i've noticed on outfit pages, when you click on one item to pull up its hover box, this also pulls up the hover box for the first item on the list. additionally, because item hovers don't have backgrounds on my browser due to the failure to include fallback styling, this causes them to overlap in a way that makes them even more illegible than they normally are.

Also having this on the kumos site. TBH on every page the spacing is all over the place.
On mobile the item hovers in the shop aren’t visible at all for the second (of two) columns. The only way to try and view them is to turn the phone to landscape, which doesn’t work all the time.
One of the various reasons that I avoid using the new site.
Are either of you still having this issue on Kumos?
Also, the item hovers on kumos shop items don't work. I opened a ticket for that too and I see there are other tickets for that as well https://kumos.subeta.net/forums/t/942298/kumos-bug-reports?forumid=2874 https://kumos.subeta.net/forums/t/942270/kumos-bug-reports?forumid=2874
That is a separate issue, and will be addressed in the forum thread that you have already created for it.
I also want to remind you that tickets are not to be used for reporting bugs, and the Problems & Bugs forum is the place to report all bugs in forum threads unless the bug can be exploited or reimbursement is needed.