Guidelines for uploading images to Google Business:
Format: JPG or PNG
Size: between 10 KB and 5 MB
Recommended resolution: 720px tall, 720px wide (square), or aspect ratio 4:3 or 16:9. (You can crop the picture before uploading it by clicking on the cropping icon in the upper corner of the picture)
Quality: In focus and well-lit, with no significant alterations or excessive filter use.
Photos and videos have to be in line with the content policy
Guidelines for uploading videos to Google Business:
Duration: Up to 30 seconds long
File size: Up to 75MB
Resolution: 720p or higher