The key thing about the Senate is the role of Majority Leader in deciding the calendar, especially when it comes to confirming appointees. For example, why didn’t Merrick Garland get hearings -> confirmation vote in 2016? If Chuck Schumer had been Majority Leader you can bet that Merrick Garland would be on the US Supreme Court right now.
I was thinking that even when I was typing 👌 the one good effect of a GOP Senate is that fewer leftists get to join the judiciary. The cynical side of me thinks that it is because it is the one area of Senate work where bribery and kickbacks still isn't an issue, but we must be grateful for even small favors.