Thanks for saving me some time. I wanted a free little server in case my home RPi is down for whatever reason. Not surprised it's too good to be true.

I've been on the free tier 1vCPU x86 / 1GB RAM for years and it was a perfect experience. I recently upgraded to the 4/24, and indeed you need to change to PAYG or otherwise it's out of capacity, but still no problem and within the free limits. For your use case, if the 1/1 instance is enough, I highly recommend Oracle and it's not something I imagined myself saying.