In my view, switching accounts on these apps is one of the easiest and smoothest gestures ever.
On Instagram, you can easily switch between multiple accounts by tapping your profile icon in the bottom right corner. If you have multiple accounts added, you can 'swipe' or tap on your username at the top to switch between them seamlessly on mobile.
Similarly, on the Gmail app, you can switch between accounts by tapping your profile picture in the top right corner. This allows you to quickly select and manage your different email addresses seamlessly on mobile.
Unfortunately, I've stopped using these apps because I advocate for freedom tech and value privacy. It’s the best feeling ever to be part of the #nostr community!