Currently I'm using mongoDB as my event store. I have 3 different microservices. Is it recommended to use the same collection for event storage of all the 3 microservices ? else different collections is recommended for usage to store events?

Currently I’m using mongoDB as my event store. I have 3 different microservices.
Is it recommended to use the same collection for event storage of all the 3 microservices ?
else different collections is recommended for usage to store events ?