The chart is interesting because it misses the important part - it covers time, but not adoption. For example, adoption of GIMP has not likely materially increased over time (as a relative percent of total addressable market) IMHO, what the author gets wrong what so many people who claim this (they are not the first, or the last) get wrong - open source as a whole sucks at building products , but is great at building…
This is also why Google sucks at so many things, despite having the best offering on paper. GCP is honestly great, but a terrible product. Stadia? Zillion chat apps? Google Inbox by Gmail by Google? Google wallet pay Android pay wallet? They all work great and would be best in class if they were decent products and you could figure out how to get them to work at all.
And now in 2022 any gmailinbox is fn full of spam...