A lot of people seem confused when people who use any/all or multiple pronouns get upset when people only use one of them, so I thought I'd make a little explanation!
*TL;DR if you ALWAYS talk to someone who uses multiple pronouns like you see them as their "birth gender" or like you refuse to acknowledge the gender they have, you look like a transphobe and might make them feel awful, even if that's not necessarily your intention.
Edit: This isn't saying you need to keep a spreadsheet and completely evenly distribute pronouns, it's saying that it's a red flag if someone ALWAYS uses what they think is "closest" to what they think is someone's AGAB. Tbh, so many trans people use multiple pronoun sets and it's sad to see how many people in the comments seem to think it's an unreasonable ask.
(There are some any/all people who genuinely do not care about a variety of pronouns being used, but oftentimes if someone bothers specifying, they do care. Also, "birth gender" is in quotes to emphasize that AGAB is a social construct, and while people do think about AGAB and try to guess others' AGAB, in reality it only tells you what's on someone's birth certificate and isn't a good way to categorize people.)
Text below if it's hard to read, tried to make it a decent font size but idk if this is too crowded and incomprehensible:
"If someone asks you not to touch them, they probably mean they want you out of their personal space. If you hover your finger a couple inches away from them, you're technically following the letter of their request but not the spirit, so they'll likely be upset."
(Drawing showing one person saying "Don't touch me", and the other hovering their finger very close to them, saying "I'm not technically touching you!". Arrow pointing to the second person says "getting as close as they can to violating the stated boundary on purpose".)
"Many people who use "any/all" or multiple pronouns want to hear a variety. If you only refer to them as whatever you think is "closest" to their "birth gender", they'll likely be upset, because it seems like you don't see their gender as valid and are trying to get as close as you can to misgendering them. Mix it up!"
(Drawing showing one person thinking "they it she he xe". The other person is thinking "I think she's actually a woman" and saying "she she she she she".)
(Drawing showing one person thinking "she they they she". The other person is thinking "I think he's actually a man, but I want to avoid calling him a woman without technically "misgendering" and saying "they they they they they".)