Where does Eelectron's persistent data exist by default?

as mentioned in this question, where does the persistent data of Eelectron exist by default? For example, it can"t be found in the LocalStorage, document.
although it uses the kernel of chrome, it should have a default independent storage location, and it should even be able to change the storage location. Have any great gods studied it?

Apr.07,2021

Yes, in the directory of the Electron program you are using, if it is the installation version, it is a place like appData. According to the program name, you should be able to recognize it when you open Devtools, which is similar to chrome

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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e46775-44bb9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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