Ask about reducing vhdx storage

[cheesecat47]

Hello, I recently upgraded to wsl2.
I want to ask can I reduce the size of the wsl2 virtual machine.
The ext4.vhdx file size takes up about 80GiB, but the ssd I'm using is not too large.
Recently, I created a folder that was about 60GiB.
And then I deleted it, but the size of the virtual machine didn't shrink again.
I want to save space on the c drive by reducing the size of the vhdx file.
I need your help.
Thank you.

[cheesecat47]

#4373 (comment)
I searched more and solved it, thanks!