.well-known/assetlinks.json violation in ASM

Maybe see an article I made long ago as you can turn off a particular violation that comes from the source IP addresses of your bots with an irules:

https://community.f5.com/t5/technical-forum/knowledge-sharing-f5-asm-advanced-waf-options-for-granual/td-p/207968

Also look at the json profile options but they are more for bypassing signatures but you may check if the URL is having an assigned JSON profile as well-known/assetlinks.json means that the data should be JSON so it may need to be set for a more better match:

https://techdocs.f5.com/en-us/bigip-15-0-0/big-ip-asm-implementations/adding-json-support-to-an-existing-security-policy.html

See here for how to match the source ip and then stop the violation for that URL:

https://community.f5.com/t5/technical-forum/whitelisting-inboud-subnet-range-in-f5-using-irule/td-p/298070