Payments you collect from Online Payments follow this path:
Client's Bank Account -> Your Stripe Account -> Your Bank Account.
In Linework, you can see approximately where your funds are along this path with Balances. You'll find it in your navigation menu after activating Online Payments
In Balances you will see the following information:
Current balance
Funds are currently on your Stripe account.
Payments incoming
Funds are being processed and on their way to your Stripe account. (Normally it takes 4 days from the client to pay until it appears in your Current balance)
Payouts being processed
Funds are being processed and paid out to your bank account.
Read more:
Activating online payments