UK employment and foreign country employment at the same time

[akira99]

Is it legal for a UK business to have an employee with a pre-settled status that does not actually perform any work for the business and is only kept so their pre-settled status remains active? The employee has also been a registered worker in another country outside of the UK while still being employed at the UK business.
What are the legal implications involved?
Is the business doing something illegal here?
Is the employee also doing something illegal?

[dslippy]

I cannot see anything wrong on what you say.