My experience is that anything with direct camera control via mouse doesn't feel good unless you're streaming from a machine on a local network, but if you're using a controller it's not really noticeable.

It's probably going to vary from user to user - even streaming on my local network (1Gbps wired), playing with a controller feels less than great.

I played most of Assassin's Creed Odyssey through Shadow and mouse camera control was never an issue. Felt as smooth as local. Of course, with all of these services, local network conditions play a huge part. I live near a few urban centers where most of these services have some presence.

I've tried Playstation Now on a PS4 with a 1Gbps enterprise-grade fibre connection and the latency was definitely noticeable, despite single-digit pings. I'm starting to think the latency from the video encoding/decoding could be a bigger issue than the network itself.

> I'm starting to think the latency from the video encoding/decoding could be a bigger issue than the network itself.

It depends on the setup but encoding and decoding combined can be done in less than 7 ms (1 frame at 144 fps) on good hardware:

https://blog.parsecgaming.com/testing-game-streaming-input-l...

Last year on more modest hardware I would regularly see around 12 ms (1 frame at 83 fps).

For some games it won't be a problem at all. I play CIV6 with my brother and I take too long to load the game. This could be a solution.