#LightningLounge - I missed the topic, so asking again - if the custom profile was created recently and does not have "Lightning Experience user" enabled, will it impact users of these profiles after winter 20, as mentioned already we have critical update enabled, will these users still get switch option after Winter 20? Also what if the profiles are cloned from standard profile and Lightning Experience user is disabled on profile after cloning?
Users who don't have the "Lightning Experience User" permission enabled don't get the Switcher. This is true for users with custom profiles that never had the permission enabled and also true for profiles cloned from standard profiles where you or another admin then disabled the user permission.
If you've already enabled the Critical Update for your org, your users won't notice any changes with Winter '20. The only change that admins will notice is that you're no longer able to disable Lightning Experience.