Increase the maximum limit of thumbnails from 4096 MB to a higher value in the preferences
Currently thumbnail previews are limited to files up to 4096MB. Many files have a higher size so lets increase the limit.
See thumbnail previews on files bigger than 4096MB.
Benefits of the solution
With the increase of data comes bigger files, nautilus has had a hard limit on the size of previews that is small for some files nowadays.