Good work.
Like you I did a refresher for my outdoor first aid in lockdown (did they get you doing covid specific resuscitation? For us is was feeling under clothing for breathing, no breaths and cloth over their face when doing the chest compressions).
A few weeks ago my wife, who has a back problem, passed out on the stairs and I found her unconscious, thankfully only for a short time. All the training came flooding back which was reassuring.
After the course my first aid bag expanded further, especially when leading groups. I carry a tourniquet now. I would seriously consider one of these newer handheld defibs if I was leading groups of older people more frequently.
Also, they reminded my about registering your phone number with 999 for text messages – definitely worth doing, especially in dodgy signal areas where texts get through with more reliability to phone calls.