For me that post is behind a RedHat subscriber paywall, is there a free link somewhere?
It talks about a significant slowdown, 8%-19% for OLTP Workloads (tpc), sysbench, pgbench, netperf (< 256 byte), and fio (random I/O to NvME). 3%-7% for Database analytics, Decision Support System (DSS), and Java VMs