I don't really remember what it was like on iOS17 to be honest... I don't think it's the fact I have 2 work postcodes because the previous screen asked for my email address, on the left the iPhone suggested my work email address, and then nothing was suggested on the right! Even though my personal email is listed above my work one in my contact card.
Maybe I just need to create a new contact called Work and just have my work details in there but it's frustrating that it doesn't work as intended.