@olivierlambert just for fun of thought. How could Vates stack handle 40K servers farm ? I suppose TESCO have multiple in house datacenters, and not 40K servers in one place but anyway... Can this tech handle 40K servers in one XOA with attached sites by XO Proxies ? way above recommend limits isnt it ? don't remember the max number of servers per pool

@AlexanderK you could try to install perl-interpreter manually maybe? I happened to have a test host at hand that hasn't been updated since december, and the yum update went fine, perl interpreter was not installed before and yum update did install it on its own as a depency for openssl 3. Maybe others will have ideas as to why this would happen in your case.