Not all business are the same! In some business a higher price creates a sense (real or fake) of getting a more exclusive service and in this case an escort who is more picky and won't just take anybody. Considering most guys are on PrEP, I'm not surprised high profile clients might hire a guy who won't see 10 guys per week because he asks for higher fee.
I also know guys who specifically target trips and overnights to avoid the "hourly" clients.
Answering the OP question I think most escorts will require the same fee but I wouldn't be surprised if some less desirable clients are already in the pandemic trying to get a bargain
Yes, some clients are small business owners but most clients are white collar and simply moved their job to home while still working with their brains from there.
Don't get me wrong most folks have been affected and I'm sure some guys working at supermarkets, retail stores, restaurants, etc. occasionally hire escorts but they can't afford doing it as often as lawyers, doctors, and other white collar professionals who are more likely to hire an escort more often because they have more money.