I’ve had a pretty terrible experience with Sectigo/Comodo over the last few months, especially thru their acquisition. At the moment, I have certificates that are managed in two different portals, one for their previous brand and one for their new brand. Customer support told me that there is no migration path to manage my certs all in one place.
We are going to repurchase all of our certs in Digicert this year with which I’ve had a much much better experience. They are well integrated with Azure Key Vault which allows us to automate certificate renewal and our AKS clusters will automatically get the new certs without us doing anything.