Been in the tyre trade all my working life, now run my own business.
I’d never recommend sealants in road tyres, the temporary aerosols are OK for emergencies. out of all the plug kits the Dynaplug doesn’t require reaming out a small hole to fit a plug, makes a permanent mushroom type repair less effective.
But, a bike owner can do whatever thinks best for them, we in the trade are more restricted by what we can do.