!removes recommended from twitter
x.com##[aria-label="Trending now"]
x.com##[aria-label="Timeline: "]
x.com##[aria-label="Who to follow"]
x.com##[role="article"]>div:has-text(Popular in your area)
x.com##[role="article"]>div:has-text(You might like)

!removes recommended from instagram
instagram.com##[role="presentation"]>div:has-text(Because you liked a post from)
instagram.com##article:has-text(Suggested for you)

!also, there may exist userscripts or extensions better suited for switching some features off
!some of my favorite QoL extensions like this are Blue Blocker, Control Panel for Twitter and Unhook
!this page is now somewhat obsolete due to the existence of these (;w;)