Forms-Share a Form
https://support.office.com/en-us/article/share-a-form-in-microsoft-forms-384371be-f1e7-4628-bcba-abd3d6123917

By default, only people within your organization can submit responses to your form or quiz. If you want to allow anyone to submit, select the drop-down Only people in my organization can respond and select Anyone with the link can respond.
Note: Only people in my organization can respond setting is only available for Microsoft subscribers; sign in with your work account.
Send a Form Link to Others
- Open the form you want to share and select Share.
- Make sure the Link button is selected, and then click Copy next to the text box that displays a form URL.
- Copy and then paste this link in email, a class notebook, etc.
Share a form QR code
- Select the QR button to view a QR code for your form.
- Select Download, and the decide if you want to save the QR code (in .png format) or open it. Add the QR code wherever your respondents can scan it with a QR code scanner, such as a mobile device.
Embed in a Webpage
- Select the Embed button.
- Click Copy next to the text box that displays the embed code, and then type or paste this embed code into a blog or web page to embed your form within the document.
Invite Others Through Email
- Select the Email button.
- When your default email editing application opens, type the email addresses of the people you want to view your form in the To box of your email editor. Microsoft Forms includes a brief note for the recipient in the email body so they have proper context for your invitation and a link to your form.
- When you’re ready to send your form or quiz invitation, click Send.
Note: Anyone who receives the form link through email will be able to forward that email to other people where they can see and complete your form. Be sure you're comfortable sharing the contents before sending the link.