Netlify and Github Pages, for example, are capped at 100 GB of bandwidth per month. It's a very generous cap and ample for most use cases, but something to keep in mind as your projects gain traction.
I was looking for a solution where I can host Java Spring/ASP.net toy projects easily and none of them were satisfactory
(My point being you’ll need cloud flare DDOS protection or something similar, and I’m not sure I’d classify that as “super cheap” if we are comparing against “free”.
Don’t get me wrong, Cloud run is certainly an amazing product, I love it slot. It is also cheap to run as long as you don’t run into any hiccups. However, It’s ability to generate a personal $1000 or $10000 credit card bill disqualifies it from being a good candidate for small to medium projects. It is clearly an enterprise product.