Moto G8 Play schematic for variant XT2015-2, distributed as a 27.4 MB ZIP archive. Inside are diagrams a technician can use to follow voltage rails from the battery connector, check charging and USB lines, and identify components around a shorted net on a dead phone. Any standard unzip utility opens the file, and the pages are generally PDF. Since the name pins the variant as XT2015-2, make sure the model code on your device matches, as other regional versions may use different radio or SIM circuitry.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @esquematicosdecelulares. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.