From the Samsung S21U page
"The Wi-Fi 6E service availability may vary depending on the county."
Do you have proof this is active and working on Samsung handsets sold in Singapore or via telco here?
Last comment on 6GHz Wi-Fi from IMDA back in Feb 2020.
https://www.imda.gov.sg/-/media/Imd...LTE-tech-in-licence-exempt-spectrum.pdf?la=en .. very last paragraph in the document...
"With regard to the request to release more licence-exempt spectrum in the 6GHz band(refer to Para 20), IMDA recognises that developments are nascent in this band and will continue to monitor the international trends and technology developments in the band before opening up for future applications. IMDA also notes that there may be demands for opening up the 6GHz as licensed band for mobile services."
So, if you have proof IMDA have in fact opened up the 6 GHz sprectrum for license exempt use, please share.