You can sort of block publishers/devs, if they have their own “steam page.” If you click on the publisher/dev in the listings underneath review scores, if it takes you to an actual dedicated page you can click the gear icon on the right and click “ignore this creator.”

This does not completely block them but it has them show up in less places (or are greyed out in some places.) Basically they can pop kinda randomly up in sales when steam forgets to add that, or greyed out in the tabs section on the front page (new and trending, top sellers, popular upcoming tabs)

It’s not the cure-all “erase EA” button I’m sure we’d all prefer, but it does help a little.

I literally just found out yesterday you can utilize a virtual second monitor with (some) split screen multiplayer games to stream the “second screen” to a friend, giving you a multiplayer experience that you could previously only have with online connections, having totally separate screens with streaming which blows my mind, and this comes out today rather than having to try to figure out how to set it all up myself. Sick.