Covid has accelerated the price rise of properties with certain features or certain types of property (at least round our way), if we'd purchased a flat in 2019 in our area we'd have seen little if any gain in value, but as we were lucky enough to get a house with gardens and we were able to put in a driveway (parking is a nightmare round us) and we had space to work from home, so it's really driven up the value relative to all the flats around us (you can't really extend a flat after all). But I agree an 80K gain since 2019 is mental on a house in that was less than 500k when we purchased.
I think people will just be getting on later or with smaller deposits, or the bank of mum and dad will be playing a role way more often for the lucky ones, mortgage products with even longer terms are starting to become more common as well.
I think some people would rather rent than live in multi generational households - its definitely not for everyone.