As always, it’s the upper management who decides if there are more/less people working on the products, or any people at all

I used Proton Mail since college student, it was great and upgraded to Unlimited tier after getting a job. Thier VPN was okay for occasional usage. However, coming from a personal perspective, over the time I became not a fan of them branching out to other services such as Proton Pass, when they still have work to do for their existing ones (eg. split tunneling on Linux VPN client, calendar sync on Bridge, to name a few), so I downgraded to only Mail Plus. I also switched to Mullvad VPN and I like the experience better than Proton VPN. As of now, I think Proton is still a great service for email and calendar, but I’m not sure about other ones