Hi! Flying to see friends in Norway at the end of May. How do I navigate large airports with a foot that's recovering from an operation?

So May 27th I fly out to Kristiansand Norway from Indiana. I go from IN to MSP to CPH to KRS in a 15 and a half hour ordeal. the issue? My foot's recovering from surgery. I'll be in Norway about 2 and a half mos so I'll heal a lot between now and then but how am I going to get around at an airport?? I don't have a wheelchair of my own nor do I even know how that'd work with a carry-on. I can walk, but horribly slow. Imagine injured in a video game kinda limp.

But seriously, my layovers aren't that crazy. Please advise.😅