Free way to auto-sync Minecraft Bedrock Edition worlds between multiple Android and/or Windows 10 devices?

Is there a free (of monetary cost), automatic way to synchronize saved worlds between multiple Android and/or Windows 10 devices?

Using Minecraft Realms isn’t free, and exporting worlds to cloud storage and importing worlds from said cloud isn’t automatic.

I know that if you only want to sync between Windows 10 computers only, you could enter into an administrator CMD Prompt: mklink /D %USERPROFILE%AppDataLocalPackagesMicrosoft.MinecraftUWP_8wekyb3d8bbweLocalStategamescom.mojang %USERPROFILE%OneDriveMinecraftBedrockSaves (#1 Your Bedrock saves will be in the MinecraftBredrockSaves folder, #2 This uses Microsoft’s OneDrive, other cloud storage services are available, replace %USERPROFILE%OneDrive with the path to your cloud storage backed folder, #3 It must be a CMD prompt – Powershell will not work), but I want to also sync to my Android device.

On Android the path is /sdcard/games/com.mojang/, according to Mojang, but I do not see my world in any of the folders, so I am unable to link my saved game to my cloud storage.

There have been other questions on this site about this, but they involved sandboxed devices like iDevices and game consoles which disallows local file management. Android is not sandboxed in this manner.