And a Tesla charger or two.
I had this main breaker issue a long time ago as the wording on my panelboard was more nebulous. It was suitable for use as service equipment when not used as a lighting and appliance panelboard and if it had 6 or less breakers installed. At that time, the definition of lighting and appliance panelboard had been removed from the code (but I knew what it meant). I found another code section that got the inspector to approve it. As Don said, it is all moot now that they removed the SUSE requirement.