The Oppo A57 family (in marketing terms) seems to include
Branding,Marketing, Device, Model
Oppo, A57, A57, OPPO A57
Oppo, A57, A57, OPPO A57t
Oppo, A57, OP5355, CPH2387
Oppo, A57, OP5355, CPH2407
Oppo, A57s/A77, OP5353L1, CPH2385
Oppo, A57t, A57, OPPO A57t
Oppo, OPPO A57s, OP5353L1, CPH2385
… but builds are specified by device, or device codename so Oppo A57 (2022, CPH2387) does not share this build or recovery.