Snowplows don't remove all the snow usually because it would damage the road a lot, so you are left with packed snow which is fine to ride on.
You can also use studs tires if you worry.
I ride my bike in Sweden frequently even with a lot of snow without trouble. The only thing to worry about is when spring comes and the snow melts by day and freezes at night but on the main bicycle lanes the problem is solved by salting them once the weather gets mild.
I use a regular gravel bike (so not huge tires, 38mm) without stubs tires. Never fell.
I just don't ride during snowstorms directly of course but in those cases even buses and trains can be canceled until it calms down a bit.
As a fellow swede I don't think your argument holds against the real argument they're not mentioning. People want to ride cars because they're lazy and they don't want to experience the elements, but since it's shameful to admit they'll come up with any other excuse to sit in their car, drink soft drinks, eat junk food and listen to the radio with perfectly controlled climate surrounding them.
I bought myself a Xiaomi scooter and wear a good jacket while listen to music through my Sony overears riding to work. I'll have to wait with the soft drink and junk food til I arrive though. I also wear a backpack to carry whatever.
You can also use studs tires if you worry.
I ride my bike in Sweden frequently even with a lot of snow without trouble. The only thing to worry about is when spring comes and the snow melts by day and freezes at night but on the main bicycle lanes the problem is solved by salting them once the weather gets mild.
I use a regular gravel bike (so not huge tires, 38mm) without stubs tires. Never fell.
I just don't ride during snowstorms directly of course but in those cases even buses and trains can be canceled until it calms down a bit.