Given the noted workaround for the customer in https://bugzilla.redhat.com/show_bug.cgi?id=1981975#c6 marking this as blocker-.
The PR to fix this BZ is currently blocked on CI issues; see bug 1990899.
verified with 4.8.0-0.nightly-2021-08-29-075226 and passed.
$ oc get clusterversion
NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
version 4.8.0-0.nightly-2021-08-29-075226 True False 125m Cluster version is 4.8.0-0.nightly-2021-08-29-075226
# oc get proxies.config.openshift.io cluster -oyaml
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (OpenShift Container Platform 4.8.10 bug fix update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.