These ublock rules work badly, but OK, if you don't want to install an extension:

www.linkedin.com##[data-lazy-mount-id]

www.linkedin.com##div[data-lazy-mount-id][data-component-type="LazyColumn"]

LinkedIn makes this hard for some reason, and keeps updating how it works. The above is functional but also breaks some stuff.

My suspicion is that it's by design, to fight scrapers and extensions like this one.