Have you done exactly those steps I said? Because if you are still seeing 600 fps in CS:GO they're not correct. I know you didn't mention fps in your last post, just making sure.
Can you post screenshots of your Manage 3D settings and Set up G-SYNC tabs in the Nvidia Control Panel? Run GPU-Z and post a screenshot of the first page.
You can also experiment with the max framerate setting in the Manage 3D settings tab to see how far down you need to go before it stabilises. Since you said 240 works fine, there should be a threshold between 240 and 360 where it goes bad.
And if your computer is capable of a flat 240 fps when running that refresh rate, but it is fluctuating when set to 360, that will feel worse.
As said before, tearing should never occur as long as you stay below 360 fps with the monitor set to 360hz and g-sync is working properly.
Also check in Windows Display settings (right-click the desktop), scroll to the bottom and click on Graphics settings. Are Hardware-accelerated GPU scheduling or Variable refresh rate enabled? (VRR enabled shouldn't really matter, but they're in the same screen anyway)
Toggle Hardware-accelerated GPU scheduling to the other setting and try then. Generally speaking I would recommend having it enabled, but no harm in testing the other setting either way.
And then there are the numerous potential issues with other hardware or software on top of this.
It doesn't matter if this phenomenon is in csgo (cs2) or cs1.6:since there is no input lag at 360hz, everything is probably slower and this is 360hz
For example, cs1.6, if gl_vsync 1 is on, it might not be smooth, but if gl_vsync is 0, it is not so smooth, and the shots are missed.
360 Hz (358 fps)
no hitbox either
like at 240 hz or 144 hz.
Anyway, I noticed that if you start your own server (localhost), it's smoother and it feels like you're playing on a normal server.
And this can be said on 240.144 hz, but there is a stuttering that is not smooth
so far I have a UTP cat 5e cable, this could also be a problem, I just ordered a cat 7e, bandwidth MHZ can also be the cause, because I think the monitor, video card, all good words, I suspect this.. I replaced everything... there was a problem like this a long time ago..
Maybe there are little spikes on the netgraph, little green spikes, and maybe that's why it's happening..
Video:
https://streamable.com/ioho8w
This is a Hardware-accelerated GPU scheduling it is switched on, it has been so far, the Variable refresh rate is raised.