Virtual Server customers enjoy AutoSSL configured by default for all domains, backed by the same CA that we use year-round.
Similar to Let's Encrypt, the cPanel AutoSSL system uses certificates co-signed by cPanel and Sectigo to protect your sites.
They're also short-expiry certificates which are automatically renewed every 2-3 months as needed by the system.
If you install an OV/EV-type certificate, our AutoSSL configuration should acknowledge that and leave it be.
Please note that you're able to manually check for missing SSL coverage via WHM > Manage AutoSSL