In my opinion you should wait for 7.0.0 CFW. Nintendo just announced a big line up of great games on their nintendo direct. and we are expecting even bigger tittles to be announced at E3. I assume if those tittles require 7.0.0 OFW in order to run or even regardless of anything 7.0.0 hack will happen any minute or maybe months who knows . I mean 6.2.0 CFW came out of nowhere and no one was expecting it so fast . . .
For everyone who hasnt done it yet and you want to block every connection with nintendo, I would change my nintendo switch to a static DNS ( 90DNS ) this way no updates will be downloaded and most important it will let you play local multiplayer with your banned nintendo switch. (side note. obviously not on nintendo servers ) and it will also let you download from the homebrew appstore, and also FTP
1)Go to System Setting
2)Go to Internet tab
3)Open Internet Settings
4)If you already have a wifi network: Tap on your wifi network, pick Change Settings
5)If you don't have a wifi network added, open Manual Setup and set up your network name, SSID and Security
6)Set DNS Settings to Manual, and set primary DNS to "163.172.141.219" and secondary DNS to "45.248.48.62" then save