looks like rendering adblockers extensions obsolete with manifest-v3 was not enough so now they try to implement DRM into the browser giving the ability to any website to refuse traffic to you if you don't run a complaint browser ( cough...firefox )
here is an article in hacker news since i'm sure they can explain this to you better than i.
and also some github docs
FYI, you need two new lines (hit Enter twice) to actually get a new line in Lemmy.
Two new lines One new line.
Is there a reason behind this?
It's standard markdown afaik. Two new lines creates a new paragraphs, two spaces and one new line creates just a new line.