i can't play minecraft remotely

I can play when it's in person, via LAN, the world appears all right and I can enter the world, but when it's from a distance I can't do it at all, not with my girlfriend, not with my brother, with anyone, I don't know if it's a bug from 1.19.0 or it's from Minecraft, I bought it recently to play with her from a distance, but I got frustrated and I couldn't... (her world doesn't appear for me, and when she invites me to enter the world and I I accept the order, it keeps loading and won't go in, I'll leave a screenshot below.) I read on some forums that this is intentional to make us buy REALMS, but that would be very dirty so I came to report this here and I would like to be helped , my minecraft is for PC and Android, both don't work remotely, I bought it on my cell phone and on my computer and I still can't, please help me.

 
unable to connect to the world