I’m pretty sure that’s bc you are on Lemmy.World, which is still running older Lemmy software 0.19.3.
I made a separate post describing this issue. The TLDR for you is that it won’t affect you until Lemmy.World upgrades to the modern software version.
After Lemmy.World, the #2 instance on the Fediverse (in terms of users) is Lemmynsfw.com, which is likewise running old software (probably awaiting the new admins asked for). And the #3 is lemm.ee, which does demonstrate this problem.
So even if it does not affect you, yet, it does a lot of other people right now, and will eventually affect everyone using the Lemmy web UI (I don’t know if or which apps might be affected).
I am thinking - hoping - that it’s an unplanned side effect of a change, but that raising the issue like this will likely get it fixed before most people even have to deal with it.:-)
Stuff happens. What’s important is how we deal with it from here, imho.