https://www.dol.gov/agencies/whd/flsa/tips

>In 2020 and 2021, the Department completed a series of rulemakings to update its regulations to protect tipped workers. These rulemakings addressed 2018 legislative amendments to section 3(m) and other sections of the Fair Labor Standards Act (FLSA) to expressly prohibit employers, including managers and supervisors, from keeping employees’ tips.

There's that for starters. And this:

>an employer cannot keep employees’ tips under any circumstances; managers and supervisors also may not keep tips received by employees, including through tip pools;

Do you have a source you'd like to cite for your bullshit?