can you select multiple attachments in Mail?

Hello,
I have a question about email attachments. I've started taking part in workshops/classes from various organizations. Some of which have worksheets with them. These worksheets are sadly mostly in PDF form, and, while some of them might be useable, they're not 100% accessible. Especially when it comes to my braille display. So, for the most part, I have to have someone convert them to TXT for me. and for the most part, it's multiple files. So, my question is, can you select multiple attachments at once using AppleS Mail app to move them to a USB drive? I use Gmail as my email provider. So, if I can't do this in the Mail app, can I do this using Gmail's app?
If I can do this using Gmail's app or the Mail app, how would I go about doing it? Thank you in advance! :-)