Do "find" in terminal or look in the bin-folders:
┌ ~/Games/SteamLibrary/steamapps/common/World of Warships
└> % find . -type f -name "steam_*" 12:28:51
./bin/1427460/steam_api.dll
./bin/1491147/bin32/steam_api.dll
./bin/1491147/bin64/steam_api64.dll
./bin/clientrunner/steam_api.dll
./steam_api__.dll
I renamed the ones in /bin/1491147 both 64 and 32bit and was fine to go.