Don't need a government ban to make finding incandescent bulbs difficult. I have numerous lights I haven't used in over a decade because replacement bulbs are literally impossible to find. They make interesting-looking paper-weights though.
The market decided more than a decade ago that it preferred LED. Bulb formfactors that have enough embedded base will remain so long as there's a market to sell to, but development has largely wound down.That is my fear.