Logging into a Proton product requires 2FA (if enabled?). If PA is currently running, or if it is opened while an authentication request is pending, enable Proton products to recognize that and use the pass code automagically. The less pointing, clicking, cutting-n-pasting, manual entry that is required for tech usage (without just relegating the tedium to another method such as voice control), the better (a good general rule for software development).