As one of the options, the Bash manual offers using Meta-/ to specifically complete filenames.

8.4.6 Letting Readline Type For You

...

complete-filename (M-/)

Attempt filename completion on the text before point.

Meta is usually option on Macs (check if it is enabled in Terminal) or Alt on PCs.

As one of the alternatives to Tab, the Bash manual offers using Meta-/ to specifically complete filenames.

8.4.6 Letting Readline Type For You

...

complete-filename (M-/)

Attempt filename completion on the text before point.

Meta is usually option on Macs (check if it is enabled in Terminal) or Alt on PCs.