I'm an employer. We run a very family friendly company and if an employee came to me with concerns like this I'd be very worried for them, but there is only so much you are required to do, or can do, as an employer. Our costs are rising massively too - there's no such thing as a price cap on business electricity!
The employee can make a request for flexible working, but that doesn't mean it will be granted.
Depending on who the employee was, we might offer an interest free travel loan, but that obviously needs to be repaid, so it is only kicking the can down the road.
We already have a hybrid WFH/Office arrangement in place as it does work for us. Companies where they don't have one but where it is entirely possible are likely reluctant to implement it because their own management skills mean they can't monitor it to ensure it works efficiently.
@Standbylove Has your colleague always had a 50 mile commute (each way or in total?)? If not, did they move or did the company move?
Typically many people (myself included) moved further out from their work places to afford a bigger property but still get city wages. I work in the London suburbs but live in the Home Counties and have a 45 mile round trip each day. That's costing me around £30 more a month now with the increase in fuel costs.
Unfortunately in many cases it will mean businesses lose staff as they try and work closer to home or at home (although, if you're working in the office at least your own electric bill is reduced and someone else is paying for the heating).
It is an employee's market in many sectors at the moment. We're desperate for staff but can't find any as there's so few people on the market. Those that are available get snapped up on much increased salaries compared to a few years ago (someone previously recruited at £23k would now cost us £30k!) because the demand is so high, so changing jobs will be the most likely option for many that can't afford their commute any more.