For those who haven't heard about this yet:
There is a World Sudoku+Puzzle Convention 2021 coming up (it's replacing the usual World Sudoku and Puzzle Championship)
12th of November - 21st of November 2021
I think the competitive part is held on Logic Masters India website
See links below for more info:
https://www.worldpuzzle.org/championships/world-sudokupuzzle-convention/
https://logicmastersindia.com/forum/forums/thread-view.asp?tid=2941
If anyone has more information, feel free to comment :)