This option is gone for me ever since 15.2 or 15.3, can't remember exactly. The phone has been restored multiple times, the airpods have been resetted multiple times. However, my gf's airpods 2 have this option on her iphone, my APP have this option when connected to her iphone and when her airpods 2 are connected to my iphone, the option is still gone.
Anyone else with this problem? It's a pain to use these airpods on iphone and windows, I always have to go to bluetooth settings on windows and manually connect them.