Apps demanding Google Play Services within Secure Folder?

I like the idea of Secure Folder as a extra layer of security/privacy, so that my banking etc apps are not displayed in the main app drawer, and that they require an extra authentication step. By being separately located in the Secure Folder, there is lower risk of one of my other apps accessing their data.

What I have been noticing lately is that some of my apps have been complaining that "Google Play Services must be enabled", e.g. Reddit Sync Pro will refuse to load, Chase Mobile has an annoying error message. I have intentionally not set up Google Play Services within the Secure Folder for privacy, security, and battery drain concerns.

Is there any way to run these apps without enabling Google Play Services? Does having a 2nd instance of Google Play Services drain additional battery? What do you guys do? Would an app like Shelter help with my problems, or is it basically equivalent to Secure Folder?

Thanks!