PayPal is on by default. You can turn on other payment gateways yourself.
Go to Settings > Connections and select Shopify.
Select Manage gateways.
In Manage Shopify gateways, tick each gateway you use. The box shows how many gateways are selected.
Choose Gateway payout grouping: Daily (one payout per payment day) or Monthly (one payout per calendar month).
Select Save gateways, read the review, and confirm with Save Shopify gateways.
Payouts already sent keep their existing grouping. If you use Automatic sending, your usual automatic sending settings still apply.
The window saves your choices for the first Shopify store on the account.
See also: How does Taxomate work with payment gateways and payment processors?