Depending on exactly when you bought your car from Carvana, Carvana likely lost between $2,000 and $5,000 on your purchase. Carvana has never made money on selling cars. If you're willing to pay $5,000 more for a used car because you'd like good service, then there are a great deal of options available to you. The simplest option is to go to a reputable dealership that focuses on customer service (which have existed and continue to exist!) or you could find a legacy player that is moving into the space. Elsewhere in this thread, someone mentioned that they recently had a great experience with CarMax.

At its core, my argument is that there is a sweet spot in which you can get great service from these "boring industry + technology + money" companies but that's because they're actively pursuing good customer service at any cost with no consideration for making money. As soon as the company (or its investors) realise this behaviour is unsustainable, they forget all about their narrative and go all in on making money -- which is when the quality of the service slips.

The amount you pay to Carvana (more or less than you'd pay elsewhere) doesn't have a relationship to the quality of service you will receive, because it's not a "normal" business.

There can be positive consumer outcomes from companies that approach business like Carvana: in the short term, customers get investor-subsidised products, and in the long term, other players in the industry get to learn from consumer reception (e.g: CarMax probably learned about demand for higher quality service from what Carvana demonstrated early on) but Carvana specifically is doomed to failure because it isn't a sustainable company that made a bad decision during the pandemic... it's been unsustainable its entire life.