To control field visibility for different user types in Odoo, you can define user groups. This allows you to make certain fields visible only to specific users based on their group membership, while keeping them hidden from others.

For example, to make the company_id field visible only to users who belong to the Multi-Company group (group_multi_company), you would set the groups attribute on that field.

<field name="company_id" groups="base.group_multi_company"/>

Yes, For that you can use group access rights to hide from non-accessible group users.

You know access rights only work on models and not fields.
So if you have many2one field, and many2many field, and one2many field, you can set access rights to not see that models used in many2one, many2many, one2many field but if you have char, float, date, ... fields, you can use only groups in fields.