As someone whose pronouns are any/all I genuinely don’t care, I’m not going to be offended if you pick one pronoun and stick with it - I am lazy and present male, being AMAB, so people default to he/him anyway - or just use the first one that springs to mind everytime you refer to me. Obviously I can’t speak for everyone who is any/all but I imagine if most people cared they wouldn’t go with any/all
And if he does, so what? There’s nothing I can do about that so why should I worry?