Hi @HERVOUET Christophe (External) ,
Thank you for posting query in Microsoft Q&A Platform.
Yes, you are right. Currently Google BigQuery connector in Azure data factory supports as
source
only. As sink its not supported yet. Click here to know more about Google BigQuery connector
I encourage you to submit and up-vote feedback Item for this capability to enable in below portal. Product team closely monitors feedbacks and consider them for future implementations. Once, you submit feedback item feel free to share link here. So that other community members also can up-vote on it. Thank you.
https://feedback.azure.com/d365community/forum/1219ec2d-6c26-ec11-b6e6-000d3a4f032c
Please Note, I taken this feedback offline to Internal team from my end too.
Hope this helps.
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Please consider hitting Accept Answer
button. Accepted answers help community as well.