It went like this in the EU: "Bulk purchasing of incandescent bulbs was reported ahead of the EU lightbulb ban. Many retailers in Britain, Poland, Austria, Germany and Hungary have reported bulk purchasing,[126][127][132][133][134] and in Germany, sales rose by up to 150% in 2009 in comparison to 2008.[125] Two-thirds of Austrians surveyed stated they believe the phase-out to be "nonsensical", with 53.6% believing their health to be at risk of mercury poisoning.[135] 72% of Americans believe the government has no right to dictate which light bulb they may use.[136] Czech Republic President Václav Klaus urged people to stockpile enough incandescent bulbs to last their lifetime.[137]"
Back then LEDs were still quite a bit worse, so I got some spare incandescents too. I still have about 20 bulbs somewhere that I got for cheap as retailers were emptying their inventories. I have switched almost all lights to Ikea Tradfri bulbs that are controlled via Zigbee2MQTT and Home Assistant and I wouldn't go back. I still have an incandescent bulb in one lamp, but the Ikea ones set to the right temperature are so close I don't think I could tell them apart.
https://en.m.wikipedia.org/wiki/Phase-out_of_incandescent_li...
From my understanding, the ban will start somewhere around Q4 this year. Still, you'll always be able to buy them for "decoration purposes".