There was only one question regarding Standard Notes:

Is there an ETA for the Standard Notes implementation for Proton subscriber?

And the rep from ProtonMail replies:

Actually we’re interested in the community feedback here. There was a lot of pent up demand for Proton Docs so we prioritized getting that out first and are now focused on further improving Proton Docs. Given the choice between putting resources between further improving Proton Docs or integrating Standard Notes with Proton Accounts, it’s not exactly clear what is more valuable to the community. So unfortunately I don’t have an answer here as we haven’t internally decided yet either, but we will take on community feedback as we work for you. -Andy

The were several replies of people asking for them to prioritize integration, while a couple wanted them to focus on Docs.