Don't list a fake address
Using your home address or a coworking space address as your business location can trigger suspension. Google's algorithm detects this.
Hide address, list service areas
Set up as 'service-area business' in GBP settings. Hide the address, list 10-20 specific cities/zip codes you serve.
The tradeoff
Service-area businesses rank slightly lower in map pack but higher in local searches without proximity bias. Right tradeoff for most mobile service businesses.