Not that I’ve seen and I’d take what Purism say with a grain of salt: they’ve acted like pretty shitty gatekeepers themselves. Nothing they mentioned in the article seems too egregious in truth and they’re exaggerating the scale of it: Play Store app DRM exists already, and the restrictions on browser-downloaded apps they mention can be bypassed (albeit by having to go into settings) and don’t apply to apps installed through other apps stores (F-Droid, etc).