Enhanced Sync / VRR / Vsync / FPS Limit.. What is the best way to go?

A controller smoothens everything. If you have a high refresh rate and play at below that refresh rate, everything will be choppy than playing with native refresh rate (60/75/100) at the same FPS.
If you can't use a controller, use V-Sync.

Maybe even lower your settings to reach your refresh rate, too.

To get smooth frametimes you can use msi afterburner/RivaTuner and cap your fps using that software.
Random video I found to understand about it a little bit and see how to setup/how it works...https://www.youtube.com/watch?v=oh6hamdxlN0

No idea about enhanced sync but for VRR from my experience it's the best to disable vsync and limit the fps slightly below your monitor's refresh rate.

I don't think there's a global answer to your question. Some games console ports especially are so badly optimized for pc that they're a stuttering mess on any conceivable rig.

i use freesync premium cuz of my monitor (i have 7700XT)

There are much longer / more detailed answers you can get but to put it simply:

Enhanced Sync / VRR is great for any game where you can't hit your screen's refresh rate (60, 120, etc) consistently and helps eliminate tearing/stuttering.
FPS limit is good for when you're trying to save power/GPU strain, especially for handhelds where you could run a game at 60fps but might want to run it at 30 instead to save battery life, or for a game with no vsync options that will run as fast as you let it (hundreds of fps) even if it doesn't need to.

Combining the two should allow you to set your target FPS to a consistent value without worrying about tearing/stuttering, or if you're not worried about power usage or anything, just roll with Enhanced Sync / Freesync (just different flavors of VRR I believe) and call it good.

It should also go without saying that your monitor/screen needs to be VRR capable and have the option enabled for it to work.

i have a 960m and sometimes i can count the frames :D

AMD recommends Enhanced Sync + VRR.

Enhanced sync only works when the fps is above the refresh rate. VRR only works when it's below. So with both, you're getting the best of both worlds (low input lag and no tearing) no matter what your framerate is. Basically turn that on and you can forget about it.

The benefit of having a much higher framerate than your refresh rate (think 2x higher) is to reduce the input lag further, but it does not increase perceived smoothness. Say your monitor is 144Hz, if you were watching gameplay (rather than playing) at 144fps and 1000fps, it will look identical. For playing, it will feel ever so slightly more responsive at 1000. Personally I don't think that matters for the vast majority of singleplayer games, only for those that are very fast-paced.

As for frame limit, this is often used to reduce heat and noise like said previously. However, there are other reasons for using an fps limit.

Sometimes your framerate can vary a lot. So one second you have 150fps, the next you have 100. Despite the high framerate this can appear stuttery, because the frametime changes so quickly. Limiting your framerate to about the average fps can help a lot. It can decrease the overall "smoothness" a bit, but will help with the feeling of stutter.

This is especially helpful for when you are CPU bottlenecked. When you're maxing out a CPU thread, it can introduce severe stuttering even when your average framerate is high, and it's much worse than when you're GPU limited. Basically, out of 10 frames you could have one that takes a very long time to draw, so it doesn't bring the average down a lot but it's very noticeable. Limiting the framerate to below your average will reduce the difference between these frames, making the stutter appear less jarring.

I've had an i7-2600K with a 1080 Ti for a while, and some modern games like Mass Effect Andromeda and Anthem, and even when the framerate was ~60 they felt like half that, because my 0.1% frametimes went sub-30. Limiting to 45 decreased the overall "smoothness", but it actually felt better to play.

There is also stutter caused by the game rather than your PC. Many Unreal Engine games suffer from this, for example Jedi Survivor. You can't do anything about that unfortunately, it's how the game and engine are written (ie. poorly). Using DXVK can help though, in Jedi Fallen Order it almost completely eliminated stuttering. In GTA 4 not only it removed stuttering but greatly improved performance. It doesn't work for DX12 games, there's VKD3D for those but it has much less compatibility AFAIK.