New Tires?

I'm still pretty new to fat bikes and still learning things around tires. My 2019 Northrock still has the original tires and I'm sure they need replaced (it's on my shopping list). But I'm trying to figure out where new tires fall on my priority list this my question, are these tires definitely done or is it just the stretch of 10lbs of air in the tires? Close up and far away shots to give a good idea. You can kinda see the lines in the far away shot on the rear tire but both are like that.