[tedivm]

I absolutely consider the rest of the best to be B2B. Some of them are also used by consumers (in the same way that many products are both B2B and B2C), but all of those products have business use cases. Whether it was "widely used anyways" is a different argument and a bit of a shift in the goalposts.

[joshuamorton]

Were any of them paid B2B products that required any effort by the "client" to migrate? Because if its not paid, its not really a B2B product.

[dx034]

Any business tool requires effort to migrate. No matter if paid or not.

[joshuamorton]

I don't think you understood the two different requirements:

Was it a paid business tool? (If not, it's not really a business tool, it's a tool someone was relying on for business, which is different).

Then secondarily, was there a migration cost? Which there sometimes isn't if, for example, two tools are API compatible.