Oneclick Reset Advertising ID
1...Install & run QuickShortcutMaker
https://play.google.com/store/apps/details?id=com.sika524.android.quickshortcut
2...Search inside QuickShortcutMaker for "Play Services"
and then choose the "Ads" activity below it.
"Google Play Services, Ads (AdsSettingActivity)"
Application.Activity,Package/Class Google Play
services,Ads,com.google.android.gms/
com.google.android.gms.ads.settings.AdsSettingsActivity
3...You can rename the new icon "Reset AdID" or whatever
and you can change the icon if you like also before
you hit the "Create" shortcut button.
The result should be a new shortcut to reset the advertising ID.
Another way of doing it is described here.
https://wordsmith.social/friends-near-and-afar-letters-we-share/create-a-shortcut-to-advertising-id-directly
1...Longpress an empty area of the Nova homescreen & press "Widgets"
2...Touch & hold on "Activities" & find "Google Play Services (156)"
3...Select the "ads.settings.AdsSettings.Activity"
This "Reset AdID" shorcut resets the Advertising ID in one step.