Microsoft's entire business model for decades has been to shove shoddy products down people's throats. And somehow, they have figured out how to do it too, because otherwise Teams wouldn't be used by anyone.
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Find a software market currently addressed by high price products; create a reasonably good product for that market; sell it for significantly less than the incumbent. Sell much higher volume of said product than the incumbent, thereby make much more profit. Repeat/rinse.
The Windows lock-in, embrace extend etc came after this. You can't lock in customers if they didn't already willingly buy your product.