HomePod Mini issues changing to another AppleID

Hi there,

I have two HomePod minis in two different rooms. I configured the first to my AppleID and, a few days later, bought another one with the intention of configuring it to be used with my partner's ID. However, here came the first surprise: the Home app forced me to register the HomePod under my ID, despite my partner also being a member of the same house.

After this, I tried to set her as the main user for that HomePod, but that did nothing and my content (music and podcasts) kept playing instead of hers when you asked Siri for something. So we decided to log off from that HomePod and log in with her account. Now it seems like she can use her music and podcasts there, but the calendar and reminders are still mine. Is there any possible way we can change this? Why, after logging in with a particular Apple ID, does the HomePod keep managing the first user's data?

Note: we can't use multi-user voice recognition since our native language is Spanish and we would like to have the HomePods in that language - therefore true multi-user is not available for us yet.

Thanks in advance.