Nothing to see.
Didn't Milly have a go at Klopp at West Ham when subbed off and we then scored.
There's been loads of it over the years. In isolation it's nothing.
But in the context of Salah being an absolute mile off it for 6 weeks and clearly sulking with the manager because he's not starting, it's a little different and not a good look.
I can understand players not being happy at being subbed off in a game because their blood is up from playing and they're not thinking rationally, but when a player tries to avoid embracing the manager when getting subbed on, it isn't great.
Edit - Some context in all this as well: Klopp isn't a fucking wanker like Erik Ten Hag. He's helped Salah become the player he is, he's helped him win everything that matters in the game, and he's soon leaving to take a break because he's practically on the verge of a breakdown. Throughout all of these past 6 weeks of Salah being hopeless and missing chance after chance, Klopp hasn't in any way been critical in public. For Salah to then sulk anyway over getting dropped for awful form and act like the manager is a problem to him is pretty bad in my opinion.