Razmataz

Answers by perplexity.ai, which I use, can be copied using the copy button. Pasting it is OK, including references. Here is how it appears in EN:
Question (offered by perplexity.ai): How does Evernote v10 compare to previous versions?   Answer:   Based on the detailed search results provided, Evernote version 10 (v10) appears to have several significant issues compared to the previous "legacy" versions of the app:   Performance and speed issues: Many users have reported that Evernote v10 is significantly slower and less responsive when switching between notes or notebooks, making it "borderline unusable" for some.[2][3][5]   Loss of functionality and features: Evernote v10 has removed or broken several features that were available in the legacy version 6.25, such as the ability to easily export large numbers of notes, have multiple Evernote windows open side-by-side, and see favorite notes.[2][4]   Incompatibility with existing workflows: The transition from the legacy desktop app to the new web-based v10 has caused issues for some users, with notes and metadata being lost or displayed incorrectly when exporting from v10.[3][5]   Perceived intentional crippling of v10: Some users believe Evernote has deliberately limited certain features in v10, such as the note export functionality, in order to discourage users from leaving the platform.[4]   Lack of responsiveness from Evernote: Users have expressed frustration that Evernote has not adequately addressed the issues with v10 or provided a clear roadmap for improvements.[1][2][4]   In contrast, the legacy version 6.25 is described as "fast and reliable" with a more "professional" look and feel.[1][3] Users who are happy with the basic note-taking functionality prefer to continue using the legacy version over the problematic v10.[1][4]   Overall, the search results indicate that Evernote v10 is widely seen as a significant downgrade from the previous legacy versions, with major regressions in performance, features, and user experience.[1][2][3][4][5]   Citations: [1] https://discussion.evernote.com/forums/topic/144030-evernote-10-vs-evernote-6-legacy/ [2] https://discussion.evernote.com/forums/topic/129055-the-new-evernote-10-version-list-of-missing-core-features/ [3] https://discussion.evernote.com/forums/topic/148236-evernote-v10-is-still-not-an-adequate-replacement-for-the-old-v625-windows-legacy-client/ [4] https://discussion.evernote.com/forums/topic/145649-legacy-vs-current-version/ [5] https://discussion.evernote.com/forums/topic/149001-v10-and-note-portability/

There can be no doubt: V10 is slow. It is slow in comparison to legacy. It is slow in comparison to the similar platforms.
That doesn't have to mean it is unusable. And I understand that arguments about sub second responses. For a single action, mind you.
The problem is more visible if one has to execute an action for a couple of hundred notes/tags etc. Legacy was really good at that. V10 isn't by an measure.
Will there be an improvement over time?
If you believe @PinkElephant, there will be. EN will now have much more time to work on V10, as legacy will have been shut down soon.
That's where I have reasonable doubt. EN seems to be much more interested in new "modern" features than fixing old problems, some of them as old as V10. Sure, it is much cooler to work on some AI stuff than fixing issues. And it is easier to declare that nobody needs those anyway, because all users are totally jazzed up about what's coming.
That's where our views part: others may be excited about the future, I am worried about the present, because that's what is relevant for me right now. And it this present, V10 is not that shiny.