A web-based tool in Microsoft 365 that enables users to quickly create surveys, quizzes, polls, and feedback forms.
Unfortunately, as per https://support.microsoft.com/en-us/forms/form-question-response-and-character-limits-in-microsoft-forms there is no version of Microsoft Forms allows 1,971 characters in the form description box, as the stated limit is 1,700 characters, including spaces. The other limits are 90 characters for the form title and up to 4,000 characters for a question's long-answer response and the thank-you message. If you need to display lengthy instructions, consider placing the text in a Section description or splitting it into a regular form question, subject to the applicable character limit. Alternatively, you can host the text in a Microsoft Word fillable form, a SharePoint page, or Microsoft Sway and provide a link to your Microsoft Form underneath it.
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hth
Marcin