not working for me either; it strangely doesn't apply to the front page or the explore page but DOES to any of the subcategories.
TEMPORARY FIX!!!!!!!!!
-In the top right of the app, click the three dots and select 'Open developer tools'
-Click the Network tab at the top, then click on the little Wi-Fi symbol with the little gear (Should say 'More network conditions...' when hovering over it)
-In the 'User Agent' section, uncheck the 'Use browser default' and in the dropdown below it pick probably any, I selected Chrome - Windows.
-Then click any link that would infinite loop you or refresh the cloudflare looping page.
This fix will work as long as you have the dev tools open but only for 1 tab at a time, as you cannot open multiple dev tools windows.
You might be able to get around it now by changing the url at the top from 'https://itch.io/' to 'https://itch.io/games/'.
I tried out the App the 1st time today. Same problem here.
Your fix works perfectly well, thanks. But (a) for normal users, this is not a solution => they will just never use the App :-(
(b) is there a way to set the user-agent to something working for the whole itch.io App? Maybe from command-line (I'm on Linux but that should be analog to windows regarding cmdline args).