On the EV6, there's a paddle behind the steering wheel that you can use instead of the brake pedal that will use 100% regenerative braking. I use that almost exclusively, only using the brake pedal when I don't brake soon enough and it's necessary for a quicker stop (which is maybe 5-10% of the time).
Also, the brake pedal uses regenerative braking most (maybe 80-90%) of the time, unless (again) needed for quicker stops, or if it detects friction braking hasn't been used for a while (just to clean off the pads).
So by my rough estimate, I'm guessing we use regenerative braking about 90% of the time, which means it should be about 10x the timeframe (vs. ICE vehicles) to replace brake pads/discs.