Hello
Since .9 or .10 there are critical issues with the asset importer or something similar
Importing textures freezes the entire editor for 20 seconds on a single 1k texture
Recompiling shader graph freezes the entire editor for 60 seconds (which is most likely related to the textures inside getting fetched)
Adding a material freezes the editor
I suppose many other things
This makes working really painful right now and needs a fix as soon as possible
(13900k, 64gb ram)
Ok it appears on .9 you can see this window

On 10 this window dosnt appear but it still does the minute long loading for no reason
Usually such a shader compile or texture import is a matter of seconds
The texture import also seems to take almost 60 seconds, the same as the shader compile
CTRL-Z is also affected in some ways by these freezes I noticed
While I may not have the reason why it freezes, maybe try to get a stack trace of it freezing and share it with us here so we can have a look. This is one way to get a stack trace of the Editor while its stuck: Debugging Editor freezes and hangs [Windows Only]
If you can share that, then we can start trying to figure out why its stuck in a particular function for a long time.