90% of my career as a software engineer and cloud architect over the last 15 years has been figuring it out myself. It’s great when there is a senior super coder with free time to mentor you, but that was literally never the case for me, I’ve been the most senior on every project I’ve ever worked.
It means I had to learn a lot of things the hard way, but I also think it made me better at what I do. I now mentor jr devs to try and save them some pain, but what you’re seeing, especially in a small company where people wear a lot of hats is pretty normal.