It seems like Heroku has been dying on a vine. The platform is still incredible and unmatched in Developer Experience, but recent security incidents (along with a severely prolonged resolution), downtime, and (just yesterday) a DNS-related issue is making me reconsider and quite possibly will move some mission-critical apps to AWS.
Are you migrating away from Heroku? If so, which cloud provider are you using (AWS, Google Cloud, Azure, etc)? What's your stack and what service are you migrating to (ECS, Elastic Beanstalk, etc)?
Every year I try out new things (fly, render), but stick with heroku because I'd rather focus on building products and not devops.
I'm a solo dev making $700k a year on my projects. I'm happy to pay the extra cost for things to just work.
If there is a catastrophic issue though, I do have backups elsewhere that I will use.