The thread reports the following items were V3 could be enhanced to match V2:
1. Notes Texts are not saved if you leave page and go back.
2. V2 has auto complete (when you write "We ...." it becomes "Welcome to the group ♘ Black Beauty ♘.
Thank you for joining!")
3. It takes one more click to see the club's newest members. In V2,
you can see at aglance which members are online and new.
4. It takes one more click to see team match participants
5. V3 is slower. This is felt on a slower laptop or on a slow connection.
However, V3 has the potential to be faster if it evolves a "single page" archicture.
6. Notes: "try to add text in the beginning you can't do that cause it jumps in the middle again,".
I could not reproduce this problem. I suggest that you file a defect with chess.com and provide information about your OS and browser.
7. The result looks better when you copy a list of matches into a message in V2 versus v3.
In many areas, V3 is better than V2. To name a few:
1. You can save moves and comments when you use the analysis board.
2. Messages are organized in threads. It is easier to find old messages.
3. In vote chess, you can see who voted for what and when.
4. Home page can be customized via settings.
5. When you copy a text which is too long for a note, it get truncated on the screen so you can see the result before you post.
6. V3 has a new "Top Players" page.
7. Admins can see closed accounts for a group and remove same.
I am sure there are many more such improvements. Note also: many improvements to V3 has been made based on member's feedback and constructive feedback.
I speculate high speed data comes at premium I cannot afford. Downloading the ap "chess" or "classic chess" maybe shifts the load. My conditional moves are quite hampered where one must log in.