In the recent update, everything fell apart. I strongly recommend a HCI team that conducts research on UI properties before making radical changes to the whole experience. Some strong changes can deter existing users!

Also, just like the android phones and the iPhone, please make the experience almost identical in some areas, as it encourages migration according to users needs without hesitation. For me, the only strength for Goodnotes is its backup and sync feature. So make sure the differentiation on that front is robust, while slowly improving other features. How does this help? If notability users also see that transitioning to Goodnotes is a smooth and intuitive transition, with the rudimentary operations almost similar, this will undoubtably drive traffic to Goodnotes.

Complains on recent updates:

1) Drawing bounding boxes before writing vs writing before drawing bounding boxes are now different !!!:

The operation of drawing the bounding box first, and writing text on top, now corresponds to writing on a piece of canvas, hence when attempting to erase the box being draw, it erases the entire content within. However, when the reverse order happens, erasing the box doesn't affect the text written. Apparently, the new update introduces a notion of order in writing. This is bad, as there is no clear visual indication that a piece of illustration fall in what order. This means the user has to painstakingly remember the correct order to write, or risk erasing everything when attempting to edit just the bounding box being drawn. This makes the experience extremely cumbersome. Please revert to the older version, where bounding box is just another piece of writing, with no notion of "background", "foreground" items. This is extremely counterintuitive and non obvious. Make them disjoint and independent, so that users have the liberty to draw the box first, and include text, or the converse.

If you really want the canvas option, do it as a separate tool, with visually distinct opaque background. This at first glance of the user, know how the edit operations should be like.

Thank you Product managers. Please make this a priority.