Hi
Thanks for reaching out to Microsoft Q&A.
The NO_BROWSETABLE, though is around for quite a while it is a topic which has been discussed infrequently. As you have pointed out this feature doesn't seem to be supported in synapse serverless. In this situation I would request you to raise a request with microsoft support plan to confirm if there are any other alternatives or workarounds for this. Meanwhile you can raise a feature request for this using the URL below.
[https://feedback.azure.com/d365community/post/01c95528-1225-ec11-b6e6-000d3a4f09d0?page=1&sort=newest
FOR BROWSE
Specifies that updates be allowed while viewing the data in a DB-Library browse mode cursor. A table can be browsed in an application if the table includes a timestamp column, the table has a unique index, and the FOR BROWSE option is at the end of the SELECT statements sent to an instance of SQL Server.
NO_BROWSETABLE When you turn on the NO_BROWSETABLE option, all the SELECT statements behave as if the FOR BROWSE option is appended to the statements. However, the NO_BROWSETABLE option does not create the temporary tables that the FOR BROWSE option generally uses to send the results to your application.
Please Upvote and Accept as answer if the reply was helpful, this will be helpful to other community members.