Every leftist post I see now has like 20 likes. I'm not even joking. Similar posts that would have been shown to me just days ago would have all had thousands of likes.

They're not just suppressing left wing content, these are accounts that never had many likes to begin with, what they're doing is showing the left wing people lower quality left wing content in order to get the left wing user base to stop hitting "like" on left wing content. The intent of this is to shift their content habits away from left wing content and into just about anything else. If they stop liking left wing posts because they're only being shown the low quality ones, their feeds will gradually change away from left wing content and into other stuff.

It is guided liking, they are essentially training the userbase out of its interest in good quality left wing content. These tech people see the userbase as animals to be trained like dogs.