Are you going through a corporate proxy? Some of them will MITM newly-registered domains but not established ones.

no warning

   Google Chrome 112.0.5615.165 (Official Build) (64-bit) 
   Revision c262f36e6b1d711ee42d4fbe1343b49960593f18-refs/branch-heads/5615@{#1297}
   OS Linux
   JavaScript V8 11.2.214.14
   User Agent Mozilla/5.0 (X11; Linux x86_64) 
   AppleWebKit/537.36 (KHTML, like Gecko) 
   Chrome/112.0.0.0 Safari/537.36
   Command Line /usr/bin/google-chrome-stable --flag-switches-begin --flag-switches-end --origin-trial-disabled-features=WebGPU
   Executable Path /opt/google/chrome/google-chrome

No issues when I opened it on mobile Chrome.