I was in South India for work, so was 'stuck' at a five-star hotel with pool that I wasn't paying for 😎... but it was still unsettling being there solo with no clue how or when I was going to get home and getting completely conflicting advice.
On the day my return flight to the UK got cancelled, my lovely Indian teammates asked the in-office travel agent to help. She was spectacularly unhelpful, said there was no point trying to book another flight until / if the airspace opened again, which she had heard could take several decades, and I should investigate returning by cruise ship - which she couldn't assist with, as that counted as leisure travel - and just walked off!
My husband favoured a slightly mad plan of me travelling overland (complete with formal officewear, heels, and bulky laptop...) from India to Turkey, which I think was the nearest place where the British navy was helping to repatriate Brits.
I went for the UK travel team's sensible suggestion of just staying put, booking the first available UK-bound flight, and rebooking if that one couldn't take off. The hotel said every couple of days that they couldn't guarantee me a room from the next night as people were booked to arrive (but as those couldn't get to India, I didn't ultimately get chucked out).
I flew home, about a fortnight later than originally scheduled, via Doha airport in Qatar, which was absolutely heaving and chaotic, as a lot of people appeared to be stranded there and were offering money to get on any feasible flight.