Domain syd-efz.ms-acdc.office.com appears as SYD-efz.ms-acdc.office.com in query log

Platform

macOS

Protocol

DNS-over-HTTPS

Do you use AdGuard app?

No I don't

Your configuration

No response

Traceroute to AdGuard DNS

No response

Issue Details

1. Download Office.com app
2. View domain in AGDNS query log

Expected Behavior

Domain appears as syd-efz.ms-acdc.office.com. As far as I know there should be no capitalisation of a domain.

Actual Behavior

Domain appears as SYD-efz.ms-acdc.office.com in the query log with capitalised SYD for some odd reason.

As you can see in a previous issue I created, the the "oM" in ".com" was capitalised.

Screenshots

Screenshot 1:

Additional Information

No response