Cloud CI/CD technologies — What to choose?

In the past years, enterprise workloads have been moved to cloud-native, containerized environments, powered by Kubernetes. And still, many organizations are struggling with updating their Continuous Delivery stack. While many new, cloud-native CI/CD technologies have emerged, not all of them are ready for prime time yet. Which so many technologies, platforms, and stacks available, what is a reasonable approach and choice of technology for real-world, cloud-native projects? This discussion / battle will discuss various CI/CD technologies, from Jenkins (X), to Tekton, to GitHub actions, custom bash scripts, and others, and what should we choose for our projects to end this discussion once and for all.