Hi
The auto update instals an ARM release on unit with Intel device
Sentinel updated (v3.1.3) 
Sentinel v3.1.3 launched ... on... Sonoma 14.8.2, Intel i5-10210U 

Sentinel-intel.zip downloaded, uncompressed and Sentinel.app replaced in /Applications 
and launched 
Regards
PS : Sentinel.dmg downloaded, installed and launched work fine with Intel proc.