I looked online, and most of them are iphone versions, and the Android version is actually the same, but it is more troublesome to find this preset folder. It took me a long time to find it, so I will share it with you.
First, install a software that can be connected to a mobile phone on the computer. Lightroom has been installed on your mobile phone. Open Lightroom on your computer, click Edit Options on the top menu bar, then click Directory Settings, Metadata, and select Automatically Write Changes to xmp. Then select a preset in the preset interface, right-click it to display it in Explorer, and you will see that these presets have been displayed in XMP format, and you can directly import these preset folders into your mobile phone.
The next step is to connect the mobile phone, and you can find the folder where you installed this LR (each mobile phone may be different). Take my mobile phone as an example. In "Android"-"date"-"com.adobe.lrmobile"-"files"-"carousel documents"-"00000000000"-"profiles"-"settings", you can drag it directly to this folder by default, and then restart the mobile APP. This method is the most convenient one I have found. Many filters can use this method directly, and then make further adjustments. LR is more playable than some other apps and also supports raw. With such a preset filter, it is more convenient for many "lazy people".