Summary Pretty self explanatory. When you want to browse "All", new posts just pop up at the beginning of the page, so essentially you can't browse "All", since everything shifts constantly. Steps ...
Currently there is a bug where new posts show up at the top of the feed when browsing under any sorting method. According to this github issue its been fixed in a recent release. Could lemmy.world be upgraded to this version?
EDIT: Looks like the release is not out, had thought I saw a release tag for 0.18 but it was the RC. Hopefully its out soon :)
It's coming. You said that 'it's been fixed in a recent release', but no, it's been fixed in latest version they're working on right now that hasn't been released yet. There is a release candidate being tested, but it has a few bugs still so there will be at least one more release candidate that has to be tested for a bit before being released.
There was an attempt to patch the server to the first release candidate two days ago. It didn’t went well: 500 error appeared, and the patch was reverted. You may see the details here: https://lemmy.world/post/226641