Proton acquired Standard Notes but has yet to integrate it into Proton's Office Suite both technically and subscription-wise. Also, Apple released the Freeform app a few years ago which is honestly the best hand-writing program ever released on a tablet.

If Proton is planning on upgrading and integrating Standard Notes into the Proton Drive suite, it should also include a handwriting feature similar to Apple's Freeform so people can handwrite their notes or draw on their tablets (within an encrypted space of course).

Also include a dark mode because Freeform doesn't have this yet and the bright light of the background is terrible for the eyes, especially at night.