Rolling active Roth401k into personal Roth IRA

approximately 1% in fees in my current employer Roth401k account on top of the ER of the index funds I’m invested in. Subsequently, the more my Roth 401k grows, the more I’m paying in fees.

Is there typically a rule that would prevent me from rolling this active account into a personal Roth IRA periodically (quarterly) to lessen the impact of fees?

I would also benefit from a wider selection of funds in my Roth IRA through Vanguard

What are the negatives to this approach? Is this a common practice?