There’s more then just as mentioned. Here’s what NA NSO says about NSO subscriptions.
You can get the latest info on Nintendo Switch Online, complete member-exclusive missions, and redeem Nintendo™ Platinum Points6 for icon elements, right from the Nintendo Switch HOME menu!
There’s probably more but you should contact your Nintendo Support to ask what NSO really entails as NSO is something Nintendo Support can better respond to.
Nintendo FR
*What happens if you don’t renew Nintendo Switch Online?
If your Nintendo Switch Online membership expires, you won’t be able to access your Save Data Cloud backups. However, Nintendo will allow users who resubscribe within 180 days to access their previous Save Data Cloud backups.
Nintendo Switch Online Service FAQ*
*What does Nintendo online membership do?
A Nintendo Switch Online subscription gives you access to several NES titles, including The Legend of Zelda, Super Mario Bros., and Donkey Kong. Currently, more than 60 NES and Super NES titles are available on Nintendo Switch. You can play games with different visual filters, and you can also play them solo.
Mar 18, 2020*
Nintendo Switch Online FAQ – Everything You Need To Know – Pricing, Cloud Saves, Retro Games
https://www.nintendolife.com/guides/nintendo-switch-online-fa…
