Many are complaining that this way the engineers are incentivised to carelessly create bugs because they have to ship fast and won’t be responsible for fixing them.
That’s easy to fix with an exception: you won’t have to worry about support for X time unless you’re the one who recently made the bug.
It turns out that once they’re responsible for their bugs, there won’t actually be that many bugs and so interruptions to a focused engineer will be rare.
That's how we do it in my startup. We have six engineers, most are even pretty junior. Only one will be responsible for support in any given sprint and often he’ll have time left over to work on other things e.g. updating dependencies.