Right now, Apex Legends' System Override event is running with a limited-time mode that throws out one of the core principles of the battle royale genre: random loot. The cheekily named "Deja Loot" mode picks a new dropship path and circle progression every day, but the items scattered around World's Edge stay put. A community-made map can help you know where all the good items are, but it also gives a good idea of how loot is distributed in Apex to begin with.
YouTuber Skovos first compiled a map showing the locations of all the rare body shield variants in Deja Loot, which has since been expanded upon with an interactive map showing all the weapon, shield, and rare equipment spawns, made by Reddit user Meshiest.
This map tells us a lot about how Respawn Entertainment goes about balancing Apex's loot distribution, or at least about how it's been balanced for Deja Loot. For example, there are only four Legendary (gold) body shields that spawn on the map and they're quite spread out, while over a dozen Epic (purple) body shields are scattered all over the place. The two variants are the same, save for the Legendary's fast heal perk, so this distribution suggests a lot about how powerful Respawn considers the fast healing to be.
All the red dots on the map indicate where you can find Evo shields, a new variant that's only being tested in Deja Loot for now. There are a lot of them on the map, and it's possible that Respawn put more in the mode than it would normally to let players get a shot at trying them out. If you can rack up 900 damage on enemies while wearing an Evo shield, which only starts with 25 hit points of protection, you'll level it up to 125 points—a boost over Legendary or Epic body shields' 100.
From looking at this map, at least you can go forward in Apex knowing that if your whole squad is lucky enough to have Legendary shields, the chances that you'll run into another player with it equipped are incredibly low.
Every time you drop into World's Edge during Deja Loot, you can be guaranteed that these items will spawn in those locations. In particularly attractive spots, especially this far into the week, be warned that other squads may have the same intel you do. That will all change on Tuesday when System Override enters its second week, at which point Deja Loot will bring Kings Canyon back again and the community will need to draw up a second map showing where all the good stuff is hidden.