Depends on how the car has been looked after by the first & preceding owners until your ownership.
Some people bed in engines properly, others don't.
Some people change oil every 4k miles other at 20k miles.
Some people do preventative maintenance, others do the bare minimum.
A lot of people think coolant temperature is the same as oil temperature, and drive cars hard cold...
But an important thing to bare in mind is everyone will come onto forums or social media to complain when there's an issue, but no one comes on to say "My car is working perfectly today for the 480th day in a row". As well as Volkswagen (148k units 2020) & Ford (158k units 2020) sell the most cars in the UK as brands while for example Kia sold half as many (71k units 2020). So there's an extra 77k cars a year for something to go wrong in.
In summary every car is different & things can go wrong on any car, just don't buy an evidently badly looked after car where possible.
I should also add we've a Honda Accord that was purchased at 112k miles now on 136k, three things have gone wrong in the 3 years of this car - 1. Slave cylinder needed replaced 2. the electric tailgate no longer opens from the key and 3. a small bracket broke on the rear auto-level sensor (£6) everything else works. This was a one owner from new car, a prime example of good owner(s) can make great cars.
https://www.statista.com/statistics/300305/number-of-new-car-registrations-in-the-united-kingdom/