Screen area reduced

Is this a glitch or was intentional ?

I’m seeing all this “modules” on the left side of my screen taking a lot of space from the posts area.

I like it better the “old” way, no navigation on the sides and posts spread all across the width of the screen.

It might be only me, who knows.

It is a glitch… I am trying to have it fixed by today…

Thank you Chris/Alex for being on top of everything.