Kiss: man, man, medium-dark skin tone, light skin tone emoji π¨πΎββ€οΈβπβπ¨π» is part of the People & Body and Family emojis. On some systems it can be accessed by using :kiss_man_man_tone4-1:, :kiss_mm_tone4-1:, :kiss_man_man_tone4_tone1: or :kiss_man_man_medium_dark_skin_tone_light_skin_tone: shortcodes.
It was approved as part of Unicode in 2020 so it should be displayed properly on newer devices.