this is an ongoing psyop that kicked off with an alleged murder of a journalist in Slovakia and continues in form of protests. Some of you might have noticed that "allforjan" tag. Slovak media haven't had a feast like this in the entire short history of the country.
Background info: https://en.wikipedia.org/wiki/Murder_of_J%C3%A1n_Kuciak
Inflating the number of people attending the protests seems to be the main goal of this photoshop job:
edit: adding fotoforensics.com analysis of the original file (https://www.aktuality.sk/fotogaleria/57 ... vensko/13/):