Where is my player data?

I wanted to edit my inventory the old way (by directly modifying the level.dat file to change my inventory), but later I found that the save file location has changed from C:\Users\Administrator\AppData\Local\Packages\MICROSOFT.MINECRAFTUWP_8wekyb3d8bbwe\LocalState\games\com.mojang\minecraftWorlds to C:\Users\Administrator\AppData\Roaming\Minecraft Bedrock\ Users\10772330556434103216\games\com.mojang\minecraftWorlds. Furthermore, I found that the latest version no longer allows modifying the inventory by directly editing the level.dat file. The internet tells me player data in the latest version has been moved to a separate folder named “players,” which should be in the same directory as level.dat. However, when I checked, there was no players folder. Even after creating a new folder named “players” and launching the game once, the newly created folder still didn't load player data. This prevents me from editing my inventory. Is this caused by the migration to UWP? I installed Minecraft for Windows via the Microsoft Store. How should I resolve this problem?