>IMO use the boat you have and enjoy it but don't look to me for applause of your decision to do without stuff.<
Minimalist does not mean a poor lifestyle , it usually means a far better Boating life style.
More time boating , less time repairing stuff, or having it repaired/replaced.
EG for modest sized boats a Dickinson diesel range will both cook and heat the boat , on the hook ,24/7/365 , no worries about battery draw.
OK its > minimalist < one has to turn a knob , rather than set a thermostat. WOW!
However one does not have to provide electric 24/7 , repair complex electronics , carry spare parts , listen to the noise like a vacuum cleaner (air models) and still provide space for a range and fuel to cook with .
Minimalist? perhaps, , (but still warm below freezing , with fresh home baked bread ) , the only minimum part is expense and maint headaches.
WE sometimes get visitors at our FL dock with so much installed electronics they have no idea how to turn it OFF.
At night they have learned to sleep thru alerts , bells and beeps from the electric toys, they PAID for !!