Librem 14 Qubes Users: Which device is for Wifi?

Hi guys, so what I understand from the above, is that starting Qubes in the Librem 14, we need to boot the laptop with the wifi switch on, to enable wifi, if we intend to use wifi. Ok, just one question, and please forgive me, as I am still learning, and pretty new to linux/unix, and Qubes. I have no ethernet connection at current address, so I have no choice but to use wifi, so I have to boot my Librem laptop each time with the wifi enabled. Immediately after booting, I will enter my disk encryption passphrase to first unencrypt the disk, before then entering in my user password.
Ok so my question is this:

Does having my wifi on, while I am writing these sensitive passwords, cause them to be exposed at all to the outside world?
Ideally I would like to enter my passphrases, especially the disk unencryption passphrase, while I am not connected in any way to wireless or the internet, to keep them secret.

So does having the wifi on (or at least enabled) at boot, therefore cause these passphrases to be exposed at all to the outside world, while I am typing them in?
And if so, is there a workaround that anyone could suggest, to improve the security?
(eg I guess I could boot with the wifi enabled at boot, but then quickly turn the wifi off, before entering my disk encryption and user passphrases, then turn the wifi back on again after that. But from what I have read, turning the wifi switch off at all, will keep it off for that whole session, so that won’t work either…)

Appreciate any feedback or ideas, or even guidance on this matter.
Thank you. I really appreciate any feedback.