I was not able to update or install devtoolset on rhel home workstation. Came across below article which says devtoolset is not available for individual developer (free) subscription.
https://access.redhat.com/solutions/472793
NOTE: As of July 2022, the additional subscriptions listed HERE are entitled to access to RHSCL and DTS.
RHSCL and DTS are not available for use with the following RHEL subscriptions:
Red Hat Enterprise Linux Server, Self-Support Red Hat Enterprise Linux Workstation, Self-Support
