Only subscription made through Meeting.ai from Google Play Store is managed by Google. If you subscribe from iOS Apple App Store or Web App, please refer these articles:
Uninstalling your app will not cancel the subscription.
Step to cancel from Meeting.ai Android app
Open the Meeting.ai app
Open "Profile" page from navigation bar
Click "Manage Subscription". This button only appears when you are subscribed.
You will be redirected to Google Play Store Subscription Settings
Click Cancel subscription button and confirm your decision
Step to cancel from Google Play Store app
Open "Play Store" app on your Android
See on top-right corner make sure you are logged in into the Google account linked to your Meeting.ai subscription
Tap the menu on top-left corner (three horizontal line icon) and select Subscription.
Scroll through the list and tap on Meeting.ai subscription
Choose Cancel Subscription and confirm your decision
Please refer to Google official guide for more details