Can I download my digital W-2 forms from a certain employer?

You will still need your W-2 from your employer before you can import a W-2.  You need the employer EIN, the gross income amount in box 1 and possible the box d Control Number.

See this TurboTax support FAQ for importing a W-2 - https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/import-enter-w-2/L55HzdeDr_US_en_US?uid=m6cp095k