Share a folder with photos with someone via Internet and Apple native tools

Solution 1:

The less-friction solution would be to upload the compressed version of the photos. And then use iCloud file sharing.

You can try Mail Drop.

With Mail Drop, you can send attachments up to 5 GB in size. You can send these attachments right from Mail on your Mac, the Mail app on your iPhone, iPad, or iPod touch, and from iCloud.com on your Mac or PC. All files types are supported and attachments don’t count against your iCloud storage. If a message, including its attachments, is larger than your Internet Service Provider (ISP) limit, Mail will ask you to send the attachments using Mail Drop.

^{Source:https://support.apple.com/en-us/HT203093}