There are two modes for it now
1. Intervals autosave and backup
This mode automatically save at intervals during the gameplay without manual interaction.
This mode allows the save to be loaded from the tool.
Only available for (RPG Maker XP/Vx/VxAce/Mv/Mz)
Note, autosave may cause a very small number of game crashes/failures.
You may need to try to disable autosave in case of problems.
2. Intervals saving modified savedata files
This will automatically pack the changed savedata files after you have manually save ingame.
The initial backup will back up all existing save files, further backups will only pick up files that have been modified since the last backup.
This mode only backs up the files, when using it you have to manually copy the files and load them ingame.
(All other engines use this method)
Both of these methods save the files to the given directory
(default is "Tools directory/gameSaveBackup", old files will be migrated automatically.)
Each engine can be set individually for on/off and save intervals.
This setting can be found on the main page when game is running.
Best Practices
Specify the directory for the backup to a network drive (e.g. OneDrive)
You can find the save file easily after a game update or if you want to replay the game without keeping the game itself.
Or to retrieve an save after it has been overwritten