You definitely can. Actually relatively simple if you know your way around Linux. This is a good guide for Arch [1]. I think there's a couple more steps on Fedora or if you're using zram in general but it's definitely doable. I've even got it working with secure boot using my own keys.

[1]: https://gist.github.com/RobFisher/abd9b2b9fca4194ac8df112715...