my friend also having ploblem that his world in 1.18 keep getting deleted every day or two. I think his android folder keep getting clean by his phone (redmi note 9 pro)
Redmi note 10 Pro
Root and 3rd party apps works but it way too complex and way less reliable.
And new location is in android folder that will definitely delate all my file when i join leave or beta and swich version for running old mods.
It should not be like this.
there is a app (which is not longer in development) I use alot that help me change the biome of a chunk or edit mob data. It's also got broken because of world location change.
it going to be much better having a setting that allow use of old location as many old apps work on that location.
workaround or even google them self removing restriction on android will not be the same as it was before.
and cleaning app delating my world in android folder is way common then i thought. so i also have lost 2 world made in new verson by now.