In case you weren't aware, MacOS uses zsh as the default installed shell. The bash version that comes with MacOS is some ancient 3.x version, from 2005.
Just that it would be `.zshrc` since zsh is already the default shell in the context of this post unless you enjoy a mid-2000s existence and none of the nice bash features of this generation (in which whatever `.bashrc` you've crafted is likely broken by time passing).
Maybe I'm underinformed, but I don't personally know any Linux users who convert to zsh, instead opting for fish or something else (oilsh? nushell?).