Everythingrelated to cutting inside is more difficult, not only shooting. As a dribbler, you prefer to have your body between the opponent and the ball. This is really one of the most basic principles. But when you cut in from the right with the ball on your right foot, you leave it exposed to interceptions and tackles. That means you can't let the opponents come as close to you. It is more difficult to "invite" pressure (because by shielding it, you open your body towards a direction in which there are almost zero options) and it is more difficult to "round" the defender. Moreover, when you cut inside it is very often in a horizontal direction. If you want to play a forward pass after cutting in from the right as a right footed player, you pretty much have to play the pass - and those are among the most difficult - with the weak foot. You can't even use the outside of the foot properly in many situations and even if you can, you simply can't manipulate a football the same way you can manipulate it with the inside of the boot. All this means that you intrinsically look for a back or horizontal pass - and even the latter is more difficult since you can't utilize the curve to gain a bit of space as it is often seen in switches of play. Or in other words, you feel saver when passing backwards than frontwards and this will affect your decision making and frequency of space creating passes.Guess we'll have to wait and see. Imo Sancho will help us a lot playing from the right. Might have to be a change in manager until we do anything anyway though. But I strongly disagree with pretty much saying Sancho only worked on the RW with Hakimi behind him, he did well without Hakimi too and generally I think the biggest difference in his play from either wing would just be he takes on more shots from the left as he can cut in. We don't need shots from him though so I don't care about that. We'll see though.
And you could go on and on about it There's also this thing that passing/shooting the ball with the outside of the boot often requires a bigger "range of motion" and interrupts your step sequence/footwork more, meaning you lose a few milliseconds here and there. And that's one of the strongest elements of Sancho's game: Quick body feints and skill moves not to cover lots of grounds but to set the opponent on the wrong foot and open up tight passing lanes he can utilize with a quick "flick pass" or use as a distraction to dribble through.
Moreover, going past a defender on the outside with your weak foot on the inside is much easier than the other way round, so it doesn't really limit your decision making at all. You can even say it is easier for less pacey players to do it as an inverted winger since you have the element of surprise.