Ah. – There is a Feature Request (FR) to that: Password Size Font and Color
There are probably two FRs to this topic… Default ownership and default collection/folder when creating new vault item and Ability to configure a default folder in the settings of the browser extension
Yes. “Shared folders” are called “Collections” - and those need an (or exist in an) “Organization”. Here would be a good start (infos) to that: Organizations Quick Start | Bitwarden
(PS: You don’t necessarily need a “Families” subscription for that - here the overview for the “personal” (i.e. not-enterprise) accounts, that all allow for some “sharing”:
… here the complete table: Bitwarden Password Manager Pricing & Plans | Bitwarden)
I don’t know the definition of “vaults” in 1Password, but I think I read the comparison between “Organizations & Collections” (Bitwarden) and “vaults” in 1Password… (heresay!)