Start with your employer’s policy and use approved systems for work messages....

https://rapid-wiki.win/index.php/What_should_I_check_at_the_end_of_a_shift_on_my_phone%3F

Start with your employer’s policy and use approved systems for work messages. Hide lock-screen previews, set clear on-call notification rules, and check which account you’re using before you share a message, file or photo