How do I install wifi driver/firmware?

The wifi driver in my MacBook10,1 (MY2017 intel 12" macbook) which has a BCM4350 wifi chip.

Picture below

I'm trying Bazzite and Bluefin each on this and trying brcmfmac driver, but only 2.4ghz wifi works. (asking here since Bazzite is largest)

How would I add 5ghz support? Logs indicate the driver is searching for and failing to load text files and blobs.
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