UKVI have updated their guidance for immigration applications during Covid-19, which includes a few changes regarding meeting the requirements for fiance/spousal/FLR/ILR applications:
If you’re applying to enter the UK or remain on the basis of family or private lifeThere are temporary concessions in place if you’re unable to meet the requirements of the family Immigration Rules to enter or remain in the UK due to coronavirus.
If you’re unable to travel back to the UK due to coronavirus travel restrictions and your leave has expired, a short break in continuous residence will be overlooked. You are expected to make your next application as soon as possible.
Fiancés, fiancées or proposed civil partnersIf you’re here with 6 months’ leave as a fiancé, fiancée or proposed civil partner and your wedding or civil ceremony has been delayed due to coronavirus you can either request an extension until 31 July 2020 by updating your records with the Coronavirus Immigration Team, or apply to extend your stay for a further 6 months to allow the ceremony to take place.
Changes to the minimum income and adequate maintenance requirementIf you have experienced a loss of income due to coronavirus, we will consider employment income for the period immediately before the loss of income due to coronavirus, provided the requirement was met for at least 6 months up to March 2020.
If your salary has reduced because you’re furloughed, we will take account of your income as though you’re earning 100% of your salary.
If you’re self-employed, a loss of annual income due to coronavirus between 1 March 2020 and 31 July 2020 will generally be disregarded, along with the impact on employment income from the same period for future applications.
If you’re unable to provide specified documentsIn some cases, we will be able to decide your application without seeing certain specified documents if you cannot get them due to coronavirus. Otherwise, you may be asked to submit the specified documents after the date of application.
Changes to the English language requirementIf you’re asked to take an English language test as part of your application, you can apply for an exemption if the test centre was closed or you couldn’t travel to it due to coronavirus when you applied.
See:
https://www.gov.uk/guidance/coronavirus-covid-19-advice-for-uk-visa-applicants-and-temporary-uk-residents