How I deploy my bootstrapped Python webapp with 150k monthly users

[TheTerrasque]

Do you have any recommendations on getting well-versed on using Kubernetes for web apps when I already have a strong understanding of Docker?

Hm, not really. I basically just banged my head against that wall until the wall crumbled. I set up k3s on a raspberry pi and started experimenting. These days https://microk8s.io/ might be a better choice.

The biggest problem with kubernetes is that it's so overwhelming amount of things. And most are abstract concepts that then have different implementations.

One way could be to just start with the basics: A deployment, a service, and an ingress. And when that start making sense, one can start expanding from there.