Some multrengender flags:
Multrengender ⬆️
Multrengender is a gender identity on the multigender spectrum where one is multigender, but feels disconnected from some of their genders. They may feel directly connected and related to some of their genders, but feel that, despite being present and part of their gender identity, their other genders are disconnected and seemingly "foreign".
Multrenfluid ⬆️
Multrenfluid is when one is multrengender, but the genders they fill disconnected from vary. At one time they may feel connected to their masculinity and disconnected from their femininity and mavrinity, and at another time they may feel connected to their femininity and masculinity but disconnected from their mavrinity. They may go from feeling disconnected from all genders, to none, to a few, and so on and so forth.
Multrenflux ⬆️
Multrenflux is when one is multrengender and always feels disconnected from the same genders, but the level of disconnect fluctuates. For example, one may be multrengender and always be connected to their femininity and masculinity, and always disconnected from their xenogenders, but one day they may feel fully disconnected from their xenogenders, and the next they may feel only halfway disconnected from their xenogenders.
Multrenfluix ⬆️
Multrenfluix is when one is simultaneously both multrenfluid and multrenflux. This may manifest as being multigender and one day feeling 50% disconnected from masculinity, and the next feeling 90% disconnected from femininity and their xenogenders.
Descriptions taken from the LGBTQIA+ Miraheze wiki. The flags have no particular meaning, though they were designed with the genderfluid, genderflux, and fluidflux flags in mind.