I think that’s because of the issue handling AUTHORIZED_FETCH config in Mastodon that fixed in the newer Lemmy BE v0.19.4+.

It’s better to wait for your Lemmy instance update to the latest version.

Ref: https://lemmy.world/post/15865112

I can’t wait to have my first cake here

Try to press Post button on the bottom navbar to scroll back to top of the post with no scrolling animation, press once more will take you back to Home/All/Local page.

Fyi, there is a feature request on lemmy repository talking about this: https://github.com/LemmyNet/lemmy/issues/3710

It just pop up in front of me few days ago, and then I immediately turned all the options off in the setting without any doubt…

Luckily that it is not my most used web browser now.