It’s gotten worse/more stringent after the FFL requirements for audio/video requirements for in store monitoring.
There are still some FFLs that don’t care, but they’re usually the more flexible ones in general and also more experienced/higher end FFLs.
I’ve been handed several tens of thousands of dollars in a single sale/at one time and they don’t blink. Sometimes they offer to let you borrow their cash counter

.
But I too understand from a risk tolerance/mitigation perspective. Why risk it at all even if it’s not necessarily illegal.