DigitalOcean App Platform

Heroku gives instant deployment for the most common types of apps (python/java/ruby). It's PaaS done right, it's fantastic. You should really have a look if you're not aware of it, it's only $7 for a starter app.

Problem is, scaling up is about $50 per gigabyte of memory which makes it a dead end for anything non trivial. You're forced to go to digital ocean / Linode / OVH instead to have something affordable.

That leaves Digital Ocean as the only alternative (don't trust Linode) and it sucks because it only gives me a server to manage. I don't want to manage a server I want to run a (python) application. It's 2020 this sort of things should auto deploy from GitHub without bothering me to manage an operating system.

That isn't exactly true, for a few reasons.

First is, the top tier public sticker price is roughly $35/GB.

Second is, at higher scales, you'll sign a contract with them that discounts your rates further.

Third is, this is presuming you're paying $ for memory alone. While that might be relevant for individual apps which need that specifically, on the whole you're paying for the ecosystem, the standardization, the PaaS. You're trading money for your time back. The product you're buying is not simply GB.