Hi SebastienFlaesch-0302,
Welcome to Microsoft Q&A.
In our Linux machine, we have update SQL Server 2017 to version 14.0.3430.2 and since this version, the lock_timeout seems to be divided by ~2 when waiting for locks.
Sorry that I don’t have the Linux environment for testing currently.
Based on your results, I recommend you submit it to the Microsoft feedback at this link https://feedback.azure.com/d365community/forum/04fe6ee0-3b25-ec11-b6e6-000d3a4f0da0
Your feedback is valuable for Microsoft to improve the level of products and service. Appreciate for your understanding.
Best Regards,
Amelia
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