Can we write data to warehouse from fabric notebook?

Hi nnk9 ,

Thanks for using Fabric Community.
At present we don't have any direct way to modify Warehouse from Notebooks. Only TSQL can modify warehouse tables. 

Docs to refer - Updating Fabric warehouse tables through a notebook - Stack Overflow

We also have a good news for you -

After the release -

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Docs to refer -
What's new and planned for Synapse Data Engineering in Microsoft Fabric - Microsoft Fabric | Microso...

Hope this is helpful. Please let me know incase of further queries.