I have used such keyboards before and it scared the sh*t out of me after I noticed it had stored my online banking passwords without my consent and after realizing this i immediately deleted the app to avoid any phishing or future damage from its use.
Exactly, I noticed the wallet is asking for a permission and it looks like accepting that will give the keyboard some extra freedom to mess with your data, after losing my token to a hacker weeks ago? Nah I've been more careful.