It doesn't work that way, even if you have sfw and nsfw on the same account, people who are logged out or have a filter to see nsfw deactivated will not see the nsfw games on your account, they will only see the sfw ones
Viewing post in How do I mark my game as SFW?
I tested it just now and no you can see nsfw games. You can test this yourself, make a new itch account and make sure the settings “Show content marked as adult in search & browse” is unchecked. Then go to any account profile with nsfw games (mine for example), the nsfw games are there. This means for example, if I were to post a SFW game and a child plays that game and click on my profile, they will see all my other adult games!
Or you can just use incognito mode (or log out) and go to your own profile page, you can see your nsfw game still