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as you can see in below image asset library is not available in this list on project page. I have to buy subscription for it or its a bug.
Asset library can be seen after clickin project and then scroll to the right.
The UI is slight different in case of implementation projects.
Have you created account,here?
Can you see the "Asset Library" in the "More tools" part?
If assets library is not showing on hamburger icon then you can find in more tools section. Have look on below screenshot
In the below screenshot assets library is not showing on drop-down menu but showing on More tool section.
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