Channel search not available in Roku Ultra

Roku is not officially supported in many countries, India being one of them. To see the supported countries, go to the Roku web site and scroll all the way to the bottom. There you can select a different country and a list will appear when you select it. 

My guess is the reason for certain function availability limited to specific countries deals with licensing issues. When companies license the use of certain content, they often include restrictions on where they can be used. This is often because the content owners have agreements with other entities for exclusive use in specific locations. 

fredguttman, if you're in the US and search isn't available the most likely reason is that your account is associated with the wrong region.  I don't know of a way to prove it, but the only way to fix it is to create a new Roku account (use a private or incognito browser window when you do), factory reset your Roku device, and link the device to the new account.

If you go into the Channel Store (or Streaming Channels, or Streaming Store, or whatever they're calling it these days), do you see the usual US channels/apps like Prime Video, Peacock, Paramount, Discovery, etc?  If not, that would be an indication that your account isn't seen as a US account.