Might you’ve faced not the availability of .Net 6 option in visual studio 2019 even after installing .net 6 SDK if so follow these two simple steps to make it available in it:
1-Make sure your visual studio is up to date, by referring to Help -> Check for updates
2-Have to enable to using preview SDK versions by Tools -> Options -> Preview Features (Under Environment group) -> Check “Use preview of the .Net6 SDK”
Then restart your visual studio and enjoy .net 6 in visual studio 19
