If that 3% is made up of an outsized share of power users they might be ok. I'm more worried about the power structure shenanigans that have been going on the past few years.
I alway wonder how underreported the Firefox figures are by things like that its users are generally more technical/privacy aware (so are blocking the trackers that report these numbers) and also spiders and bots often pretend to to Chrome (inflating those numbers).