And all car owners want to know "how long can I drive it 'till it breaks completely"
Honest answer - "No Idea"
I've had ONE car that "ate" wheel bearings (and I think what were "stretched & poked" wheels & tires for the time had something to do with that).
Got so used to it when the first ones lasted hundreds of miles after getting noisy I wasn't concerned when one got noisy again....
Of COURSE that was the one time the bearing grenaded (close to home at least) and it had to be towed.
I honestly see an example by the roadside every week or two where the wheel "fell off", usually not completely, but enough to come to a screeching halt. More ball joints than wheel bearings from the evidence, but I always wonder why the people kept driving until it gave up completely.
Nothing to gain financially from recommendations here (obviously), just have a personal preference for fixing anything you KNOW is broken when possible. There's ALWAYS plenty that COULD go wrong you can't forsee, but with regular maint. & repair of KNOWN issues you seldom have major problems on the road....
(Some folks have better luck with Murphy's law than others...)