As soon as I put the cursor on column 79 or beyond, the Vim viewport jumps to make sure the cursor is put in the middle of the viewport. I find it massively disturbing, but could not navigate my way through the :h
pages to find how to turn it off.
Is there some way to change what that limit is, or even disable it altogether?
:verbose set sidescroll? sidescrolloff?
sidescroll=0 sidescrolloff=5
. It sounds as if one of these is the way to fix my issue.