Every person who is now working from home, who used to work from an office, can now claim £26 off pcm to offset increased utility bills etc etc. If your employer won't pay you this £26pcm (which then gets taxed at your prevailing tax rate i.e. if you're a 40% taxpayer, it will be taxed at 40%) then you can get this as a deduction on your tax bill, at your prevailing rate of tax and your tax code will get changed accordingly. Apply to HMRC if you need to go directly.
This has been widely publicised across national press, the BBC, places like MoneySavingExpert etc - why this has come to news to some people now, almost 1 year into this pandemic I don't know.
It should not be confused with the grant which MPs get to run their offices, the repayment of their expenses or indeed their salaries. Completely different things.
I know a lot of people are up in arms about the amount which an MP earns, however if you look at the hours that they work, the times of day that they work until (yes, I know that this could and should be changed etc etc), the travel requirements to London, etc etc, and then you look at the private sector salaries for senior managers in professions, it isn't actually that much. Plus the job security and longevity being an MP really isn't that good at all.