Good luck. Downsizing does make sense - smaller bills, less maintenance, and less cleaning!
I had to sell my 264 sq m house when my husband died and unfortunately it was during lockdown so I couldn't sell anything, I just had to leave it all behind. Wardrobes, linen press, kitchen table and chairs - I couldn't get a removal company to help as they weren't 'essential workers'.
I moved to this tiny 3 bedroom 96 sq m bungalow and I've had to give even more away, there just isn't room. I miss my big airing cupboard and kitchen table!
When you are house hunting, I would recommend checking out the many questions Phil Spencer recommends on a second viewing, even down to flushing the loo. If you don't ask, the vendor doesn't have to mention it.
The seller of my bungalow did give a hint that I missed :( and I would definitely recommend having a survey, as well as a damp/timber survey. As she was a retired single woman my age, I thought she would be honourable, but sadly my experience is buyer beware. She was very nervous during my viewing and I thought it was Covid nerves. I offered on first viewing and she wanted to continue the viewings over the weekend - on the Monday I was told she had 'chosen' me out of the offers, if I would pay more than the asking price, which I did.
After accepting my offer she rang me one day about something, and during the conversation said , she'd 'overwatered a plant and damaged the carpet' in the back bedroom.
When I was having new curtains fitted I discovered that every floor, except the concrete floor in the extension, was rotten with wet/dry rot and woodworm. Every floor was covered in thick black mould. Surveyors cannot lift carpets or move furniture - and the furniture had been arranged strategically. I had to have the units/fitted wardrobes and shower ripped out so all of the floors could be replaced, the job was only £11K but I had to pack everything into storage, hire a chemical toilet etc.. I will never forgive her for this omission as my beloved elderly sheltie died the following year. The vet said it was his kidneys and he would have been 14 the next day - but he had a fungus in his nose.
Good luck!