@v-litu-msft While I'm able to still trigger of the form that I have transferred ownership from myself to a Teams group, the "Get response details" forms action now returns a 404 when trying to retrieve the response from the same form ID. I've confirmed that the form ID is the same ID as the "When a new response is submitted" trigger (which works correctly).
It looks like "Get response details" action only allows you to see responses for forms that you own (and not your team).
I can confirm that both flow and form are owned by the same team.