This is correct. As a lefty I have always used RH rifles from necessity, never found it a hardship, if you are shooting off a rest e.g. sticks or bipod its easier to cycle the bolt right handed, keeping the left arm in the shooting position. If you are single-loading its easier too, and you can see what your doing when chambering the round. I also find that safety catches mounted on the RHS of the action are easier to operate with the left thumb than the right. Never understood why so many rifles have them on the wrong side.
If you have a straight-pull like an AR15 or Mini 14 then you can operate a RHS cocking handle more easily too, and it doesn't need an extension.
The only downside is that if a primer pops or something else causes a gas escape, its likely to be towards your face instead of away. So best to be wearing eye protection, just in case.