For example, I cancelled my netflix subscription because they are unable to reliably operate microservices, and the UI was always in some semi-broken state. As a software engineer, this stressed me out during my relaxing TV time.

Even if continuous delivery is somehow reliably delivered, if the changes are customer visible, then they break my muscle memory, and increase my cognitive load -- I have to re-learn the damned UI every fucking time I log in. If the changes are not customer visible, then what business value to they deliver?