I doubt they want to be a big instance — in the end, they simply don't have the resources for it.
If anything, I imagine this "investment" is simply a part of their bigger market positioning as "privacy provider", along with Mozilla VPN and their email service.
Which might be somewhat profitable for them but I'd say it's also good for the consumers — they at least become aware of the product.
I doubt they want to be a big instance — in the end, they simply don't have the resources for it.
If anything, I imagine this "investment" is simply a part of their bigger market positioning as "privacy provider", along with Mozilla VPN and their email service.
Which might be somewhat profitable for them but I'd say it's also good for the consumers — they at least become aware of the product.