One account-level OAuth app can use for all account？

I create a account-level OAuth app to access the API of Zoom through it.

Question 1

If I publish this app, can this app be used for other accounts at the same time?

(All accounts use the same Client_ID&Client_Secret, and can access their own data using the Zoom api at the same time)

Question 2

If question 1 is OK, can I use webhook in this OAuth app to return their respective information(webninar start/end  etc ) at the same time? (I think it is distinguished by accountID)

Question 3

If question 2 is OK, if the token of an account expires for some reason,

the webhook message related to this account still be received or lost?