Booster was scheduled for last week, 8 months post Moderna. Based on stronger Moderna immunity vs Pfizer and since I am careful, healthy and young, I decided to stretch a few more months out. Once I saw study that Moderna offered at least 10 weeks of moderate protection against Omicron, I scheduled booster. Could not get it due to symptoms.
A double vax from back in April or so would have substantially diminished protection by now.