The Nintendo Switch Online mobile app has made it significantly easier to send friend requests to your friends.

Upgrading to the latest version of the Nintendo Switch Online app allows you to copy your long friend code as a URL. When you send this URL to a friend, they can tap it to open the app and instantly send a friend request. So there is no longer a need to manually copy and paste the friend code itself into the friend request section of the app (thanks, On the edge (opens in new tab)).