Microsoft 365 Family is $9/month or $99/year for 6 users.
Google Business Starter is $6/month per user, which would work out at $432/year for 6 users.
My G Suite Legacy Free as it's now named has a limit of 25 users. I have 8 accounts in use from that, all family members.
I have Microsoft 365 Family with a custom domain, but, only a couple of people are on that and with a limit of 6 users, 8 won't fit, but, if I kicked off two older members of the family that don't use it much, I could get everyone on to it, for $99/month.
If I accepted an automatic upgrade from Google to Google Workspace Business Starter, I'd have a $48 bill per month, $576 per year. If someone had actually used all the 25 users, potentially giving email to their pets and toaster, if they don't remove some of those accounts, they are going to get a surprise $150 / month bill starting in July.