Kind of. CBT is (oversimplification incoming) just every time there’s a negative thought, you make a habit of thinking a positive thought, so then your brain starts associating the connection. Basically retraining your brain to naturally go from negative to positive path, and over time your brain gets rewired to do it without consciously doing it.
This documentation is for bazzite, but they have a lot of the same stack under the hood. “Broadcom’s WL driver can be installed since it is needed by some hardware. Disabled by default. Enter “just use-broadcom-wl” to use it.”. You could try to see if aurura has the same “just” options, that’s where I would first research. If not, then yeah, “rpm-ostree” would be how you install the package, just like you said, just not sure of the commands for local files. Also there is a tool to “roll your own” distro built on top of any of the ublue work, it’s basically how bazzite and aurora exist. So you can layer the packages like the other option you said. https://github.com/ublue-os/image-template