Did you follow the video tutorial to install it for your wife ?
If ADB is red in the secondary account, you must go back to the primary account and click the "Install for" button again
yes, I repeated the installation several times. ADB is red :(
UPD: I solved it! I had to manually enter the connection code in the main profile. After that, the ADB button turned green on the secondary profile too.
This is what is explained in the video 😅