This does not work because it says ''Specifying both a launch type and capacity provider strategy is not supported", and it does make sense. But how am I supposed to switch from Fargate launch instance to capacity provider strategy? There is no such option

Sorry you ran into this. This is currently tracked in https://github.com/pulumi/pulumi-awsx/issues/599. I think we have a sense of how to proceed forward on this, but if you have feedback on the proposed approach, please let us know in the issue!

awesome, thanks for helping. I will take a look into the source code and see if I can help :)