Is there no limit on generating thumbs.db (in network drive) with size, nor number of files being cached?

Question

I've seen some articles saying thumbs.db file's limit is 349MB

https://answers.microsoft.com/en-us/windows/forum/all/after-fall-update-windows-10-puts-a-maximum-size/6ad0a1e7-38c0-4547-9b8b-f7f3906c3a12

https://learn.microsoft.com/en-us/answers/questions/220078/windows-10-thumbnail-cache-size-limit

(The articles seems for local cache, not thumbs.db on network drive)

I'm wondering is there no limit on network drive when generating thumbs.db file with size nor number of files being cached

And if it doesn't, I'm wondering how to make thumbs.db to exceed the limitation (the first article seems to suggest to solve issue for the LOCAL cache, not network drive one).

And involved with the question 'number of files being cached',

I've seen somewhere that windows thumbs.db depends on hash values of every single files to verify each files.

I'm actually doubting when the number of file goes too much, it can reach the physical limit of number hash can be generated.

What kind of hash windows thumbs.db use and how many files it can handle once?