Download your Google Photos Library as a .zip file using Google Takeout.
Open the Add Media dialog by clicking the plus icon in the top app bar.
Select Add media from an online service.
Choose Google Photos Library and click Continue.
Click the ellipsis icon in the Pick Google Takeout folder field, and select your default Downloads folder.
Select the location to store your photos and create a Google Photos folder.
Expand Show Advanced Settings for organization options and automatic metadata.
Click Copy Now to import your Google Photos into Mylio Photos.