You can remove those bumper pieces --- but you'll void the entire warranty on your Jeep if you do!
(just kidding!)
Those plastic pieces (I forget the name of them) are not critical at all, but they will prevent mud from getting splashed up onto the top of the sides of your front bumper. From what I've seen, most Jeep owners do remove them. My 2022 Willys Sport did not come with them, though, and I now have an aftermarket front bumper anyway, so I never had to deal with them.
(just kidding!)
Those plastic pieces (I forget the name of them) are not critical at all, but they will prevent mud from getting splashed up onto the top of the sides of your front bumper. From what I've seen, most Jeep owners do remove them. My 2022 Willys Sport did not come with them, though, and I now have an aftermarket front bumper anyway, so I never had to deal with them.