Considering Used 2014 Prius... is ABS actuator failure at 106k miles normal?

Hi Everyone, grateful to have found this forum, and thanks in advance to anyone sharing their experiences and knowledge. I've never owned a Prius, but have several friends who love them and have always bought used Priuses (one friend who is on their third) and has finally convinced me that a used Prius is the right option for me right now.

Been searching just over a week in ATL and gone through lots of scammy offers so far. Right now looking at a 2014 Prius Two FWD with 106k miles that's in my budget being sold by Toyota Dealer. It's single owner, no accidents, 30 day limited powertrain warrenty (up to 1k miles), buuuuut the carfax shows a big gap in service history. It was serviced at the Toyota dealership regularly for the first 20k miles, but for the next 8 years and 80k miles of driving there is no service listed at all. Dealer is telling me that the customer serviced the car themselves and this is why it doesn't show up in Carfax. They sent the report on the service they performed to prepare for sale, everything's pretty basic, replacing windshield wipers, replacing cabin filter and engine filter, balancing tires, etc. But the big thing (which they sank 2.5k into) is an ABS light that indicated ABS actuator failure -- paperwork says they replaced the "pump assembly brake" and "cylinder assembly brake".

I've heard that ABS issues on higher mileage Priuses can be an issue, so in one sense it's nice that it's already been replaced, but the question that comes up for me is whether ABS actuator failure on a Prius with 106k miles is typical or is it indicative of a bad service history as well as an indication there's more big repairs coming soon?

I don't want assume that the car's fucked off the bat just because someone serviced it themselves because I know a lot of Prius owners are super knowledgeable but maybe this is naive...