Can you give a bit more information or provide a link about this please.
Gov.UK states:
If you’re married to or in a civil partnership with a British citizen
To apply as the spouse or civil partner of a British citizen you must have lived in the UK for the last 3 years.
You’ll also need to have either:
indefinite leave to remain (ILR)
settled status under the EU Settlement Scheme
If you do, you’ll be eligible to apply for citizenship immediately.