yes I know - and stereo reverbs will often ‘spill’ over both channels when used in this way - but really this is the solution.
Yes, there are other (more complex?) ways of achieving this.
Normally the Send on a stereo track is panned to the centre - so a stereo FX channel gets the signal on BOTH channels. When you activate this setting then you can PAN the send. This means the stereo FX channel gets a ‘panned’ signal.
As we both mentioned - a reverb will tend to spill over to both channels (depends on the reverb!) but even with reverb this can be quite effective. But try it with a stereo delay or flanger…it’s a very useful feature.
With surround sound channels this gets even more important.
Trust me on this one - give it a try , linked panners is very very useful. It’s one of those hidden things (hidden in plain sight)