Nimrod on OCP 4.4 we cannot even start upgrade cause of OLM issue.
On OCP 4.3 the upgrade to OCS 4.4 will start OK, but then it's failing on noobaa BZ:
https://bugzilla.redhat.com/show_bug.cgi?id=1835125
So basically we cannot really confirm that upgrade working even on OCP 4.3.
But actually without running any pre upgrade tests we passed the whole upgrade.