Normally, the screenshot will be saved here: /Users/*username*/Documents/Aiseesoft Studio/Snapshot
Also, if you have reset the folder before, you can launch the screen recorder and go to Preferences > Output to check the Location of screenshot files.
Then, you can click the folder icon on the right side to open the screenshot folder directly.
Also, you can copy the pathname, go to Finder on your Mac, then select Go > Go to Folder. Paste the folder’s pathname and click Go. (Apply to macOS Big Sur/ Catalina/ Mojave/ High Sierra.)