Docs improvement: clarify disable 2FA documentation

Problem to solve

Requests to disable 2FA to Support might be preventable or reduced by further clarification in the docs.

Further details

See the analysis of support tickets and sheet in https://gitlab.com/gitlab-org/technical-writing/-/issues/1025#note_1953689060

Proposal

Who can address the issue

Other links/references

  • Analysis of support tickets with docs links
Edited by Alvin Gounder