Do I need GeForce Experience?

Windows
,
1

2023-03-21--07-53-03

2

You don't need it. But it does streamline some tasks (such as driver tweaking, video recording and Twitch streaming) pretty well.
It's a convenience, but far from essential.

reddit.com/r/pcgaming/comments/33kmqd/comment/cqmbm7g

3

I have uninstalled it. I do not need it.