There is css issues when zoomed or when the browser windows is slightly less wide. . Similar css issues, as when you have a sale, that moves the feed button under the search box. Or when on your own profile, the feedback button is not visible.
I do not see where you can search or find creators. On the plus side, it does seem to search the display name, or rather games from accounts that match the search query by display name, where you previously had to use the exact profile name. On the downside, this will make impersonation and search engine optimisation by name change to something famous more effective.
I do not know if that is related to the itch app search, and I do not really use the app, so I am not sure how much of this is new or always was so, but when I tried to used it now to see if the css issue is there too, since the display area there is less wide, search there seems broken to me and it shows me a login button, even though I am logged in by app.
To rephrase: I log in with the app, I click explore, it shows me the url itch.io with popular tags on right side, instead of left side. And there is a log-in and register button. The footer is cut off by css with the popular tag section that is on the right side. I do not find the feed button.
There is a search button on the left side, but it does not search. It only suggests and when I write the suggestion, like "poem" just now, and press enter, it does not show search results for "poem" it just opens the first game in that suggestion box.
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Oh, the separation by assets and games and such works. Maybe consider using the same drop down box design as seen on https://itch.io/games to select those subcategories to save on horizontal space.