The existing user base will be reluctant to leave, because they’ll lose access to their massive collection of notes in the Evernote proprietary format. They’re locked in, to at least some extent.
I pay for a some writing subscriptions, but they all use markdown as the file format. I can switch apps pretty easily if I ever want to leave
I used Evernote for years after switching over from Microsoft OneNote and every year the product got steadily worse. Fortunately the ENEX file format is nothing more than a giant concatenated file of all of your notes in a customized XML blend, and with a little bit of scripting work I converted all of my notes, attachments, and embedded images into markdown notes that I use with Obsidian.
I pay for a some writing subscriptions, but they all use markdown as the file format. I can switch apps pretty easily if I ever want to leave