What I mean is that they don't say "Scan this QR code with your time-based one-time password (TOTP) app." They say "scan this QR code with your Google Authentic

What I mean is that they don't say "Scan this QR code with your time-based one-time password (TOTP) app." They say "scan this QR code with your Google Authenticator app" or "scan this code with the HMRC app", obfuscating the fact that you can scan that code with any app that supports TOTP authentication like 1Password, Bitwarden, Authy etc. All of those prompts should have a link saying "Click here if you're not sure what TOTP apps are" that goes to a page with links to a whole bunch of recognised authenticator apps, where they can show their own if they want to but also show others that people may already use.