I suspect you're right. I needed a cheap offsite host for running some monitoring a couple of years back, and deployed a small ARM host (via scaleway I think).

Running docker containers on it was OK, and cross-compiling my golang monitoring stuff was easy enough.

But over time I just wanted to use my existing pipelines and deploy x86 stuff. So in the end it was a novelty, and while cheaper than an amd64 host it was eventually replaced so that I had a consistent set of deployment targets.