i think you need to add a trailing slash for directories
/home/xxxxx/Games/
user01@wsl01:~/test$ tree
.
├── 02
│ └── file.02
└── Games
└── file.01
user01@wsl01:~/test$ rclone ls . --exclude=Games
0 Games/file.01
0 02/file.02
user01@wsl01:~/test$ rclone ls . --exclude=Games/
0 02/file.02
user01@wsl01:~/test$ rclone ls . --exclude=/Games/
0 02/file.02