Key of these are quality of collabs. Fortknite is very much example of cheap one. Character don't really fit. For other corner, Mortal Kombat games do it right as there is labor of love to make them close to fitting, Robocop or Conan the Barbarian are great addon and they feel in character.
I got to watch a streamer playing a Counter Strike ripoff. It was a mode in fortnight. Weapons were fine. If players split up, you couldn't tell at a glance who was on your team, because custom costumes everywhere. Made me want to play real CS instead of watching this fake.
