Yes, the Nikon Z30 is compatible with the Sony SF-G Tough 128GB.
Sony SF-G Tough 128GB is V90 class. Meets the floor for: 4K30 (30 MB/s floor). (Peak write 299 MB/s is not evidence of sustained performance; the V90 class rating above decides this.)
“Nikon Z30 specifications: storage media is SD and UHS-I compliant SDHC and SDXC memory cards — UHS-II cards operate in backward-compatible UHS-I mode.”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)