The correct path for the webcache_4430 folder is
%AppData%\Local\BlueClient\Saved\webcache_4430
Posts that suggest a fix for the “Insufficient video memory” error incorrectly mention the path to be AppData/Local/inZoi/webcache_4430. Instead, the path should be as above.
I found this in
November Known Issues (Updated 11/11)
Resolving Crash Issues After the Latest Update
there could be other posts.