As creator of this thread, I’m going to mark this post as solved.
Anytime this has been suggested, the same response has been: No. For the foreseeable future, this will not be a feature. It seems like Roblox is strongly opposing this. This makes sense, as devices are continuously changing and many devices take the form of others (e.g. a small touchscreen laptop vs. a large tablet w/ a mouse and keyboard hooked up).