This example explains the huge negative impact of competition or turning competition into rivalry or war, it eliminates focus and creates enemity in the mind, which is the creator of new ideas and knowledge, when in business build a strong edge on focus, stay active in giving the best, and abandon competition, it distracts the goals you've set and brings down the value the company once created, for focusing on a war that has no purpose or meaning. Think about this, and share your thoughts or experience.
On the contrary, competition makes the companies want to create the best products to satisfy the customers the more and it makes each company value its clients base more for fear of them being won over by competitors. Innovation was rapid instead of being complacent with their products and services.
It made each company want to match or outperform the other. let's see a few of their products that actually competes
Chrome vs edge
google docs vs word online
Google meet vs Microsoft teams
these competitions gave rise to better user interfaces, increased features, better performance and even fewer bugs.
It also made the two companies reduce the price of enterprise software and even offered free version to get more people hooked to it. Competition is good, it gives users more choices and as such makes companies committed to providing better experience for its users.
I would say the competition served as a motivation to Microsoft and google to get better, get innovative and upgrade their products and services at a faster rate. It had more positives for them than negative.