You sure they did the right cat? It says 9.7 lbs.

All in all, not a bad report with some good guidelines for anaeshesia.
Moderate HCM - not surprising given acro. Neko had that for several years with no issues, until her heart got worse.
"Recommend avoidance of systemic corticosteroids due to the potential of steroid associated congestive heart failure" - sounds like budesonide in his future. You can get it compounded as a flavoured liquid - which was easier for me to give, and to change dose.
I did think that his BP was a little high on the first page, but that can also be high due to stress. Has he previously had his BP tested around that range? Note: Neko once tested over 220 at the vet, but 145 at the dental vet at a much calmer environment. Might want to get the dental vet to test again for you to confirm he needs supplementation.