pawb was having an issue related to logins where the cookie was not set correctly. https://yiffit.net/post/13488055
The lemmy front end is almost exclusively javascript making api calls. I tested just now and it worked for me.
If its a related issue, some additional info and debug steps https://yiffit.net/post/12321196 (you can say hi to my alter ego).
Some quick things to try, private window to ensure no login data sneaked by the clear. Create a fresh profile with no plugins to test.