The employee form view button box should be enabled for employees,
it's up to each button in their respective modules to define
more restrictive groups, and in fact they already do
(see hr_holidays, hr_timesheet_sheet, hr_contract ...)
For example, hr_holidays adds the "Leaves left" smart button
which is supposed to be visible for employees looking at their own profile,
but it was actually hidden because they couldn't see the entire buttonbox.
Also added fixes to buttons that came afterwards and relied on this behavior.
fix for https://github.com/odoo/odoo/pull/14164
Denis Vermylen (dve)
a82055c911