User Access Control confusion

I have the following strange issue:
On my PC I have a Windows Administrator, a Local Administrator and a Standard User account. I use the Standard user account for day to day tasks. If I need to use an elevated Command prompt or install new software, then I'm asked to enter an administrator user name and password.
The options that I see are:
1. Pre-selected is the user name of the Local Administrator and a password is prompted for.
2. Below that there is an option to use a fingerprint. I found out by experimentation that it's the Windows Administrator fingerprint that is needed here.
3. Below that there is a choice for the Windows Administrator's PIN.
4. Below that there is a choice for the Local Administrator's PIN.

I read Change UAC prompt Behavior for Standard Users in Windows, but I didn't find anything there that could help me.

Is there a way to change these options? For example I would prefer to use the Local Administrator's fingerprint instead of the Windows administrator's account fingerprint.

It's also interesting that the Windows Administrator has a password in addition to the PIN, but that option is not offered.

I'm running Windows 10 Pro v.2004 on a Dell Inspiron 5482 2-in-1 laptop.

UPDATE: Based on some testing, the access using a fingerprint works only if I'm using a Microsoft Administrator account. Perhaps someone could confirm this.