CSS Media queries must not lock display orientation
Moderatecss-orientation-lock
What it checks
Ensure content is not locked to any specific display orientation, and the content is operable in all display orientations
How to fix it
Review and fix this accessibility issue following WCAG guidelines
WCAG
Success criteria 1.3.4. See the WCAG 2.2 quick reference.
More detail: Deque University's page on this rule.