To be fair, though, the lightsail instances that are subject to oppressive throttling aren't really a good comparison. Those should be dirt cheap, as they are useless if you use them in almost any real fashion.
These were Ruby on Rails projects.
https://lightsail.aws.amazon.com/ls/docs/en_us/articles/amaz...
But I do remember on another host (I tried a different one between linode and light sail) that I actually got an email that I was using too much CPU and was shut down.
So I do remember using a lot of CPU, but I don't know where that percent was.
Their fastest instance type is still in the bottom ~15% of this list for example: https://www.vpsbenchmarks.com/screener