is there a big difference between the PC version and lets say, the Switch version?

Not in the game itself. Obviously, you can use more controllers etc. on one, but the game itself is exactly the same. On occasion, PC is updated sooner. Edit: You can also bind 2 actions to one button only on PC for some reason

Alright thanks for the response, im thinking of buying the game on the switch and i want to learn this speedgame!

Binding two buttons is super helpful for speedrunning Shovel of Hope at least for me. Switch version has the Custom Knight option. I do not think you can speedrun this on PC (I may be wrong). If I had Switch, Shovel Knight would have been the first game I would have bought. Regardless of that fact I would never give up on my PC version. I feel they both have differences that make them a worthy copy each.

Well in that case if you're running custom knight then yeah.