The sorting feature provided by the OneNote client is only temporary sorting on the local machine. These sorted results are not synchronized to other OneNote clients.
To synchronize the sort results to other OneNote clients, you can only drag and drop to adjust the position of the page. The results obtained in this way can be synchronized to other OneNote clients.
Or sort the pages through plugins, which can also be synchronized to other OneNote clients.
Sort OneNote Pages by Number https://www.onenotegem.com/a/documents/gem-for-onenote/gem-tab/2019/1124/1154.html