Is PGP in Thunderbird, eMClient or Mailvelope webmail extension as secure as Veracrypt?

If you need to email somebody an encrypted file, is encrypting the attachment in Thunderbird or eMClient with built-in PGP just as secure as encrypting the file first in a Veracrypt container and emailing as attachment thay way? I would use a 20 character passphrase for the PGP Key.

Similar, if you use webmail, is using a PGP encryption chrome extension like Mailvelope (https://mailvelope.com/) as secure as Veracrypt? Maybe another PGP extension?

I want to send the file …

extension pgp privacy thunderbird webmail