Coping with stairs.

I do not live upstairs, but I go to bed up there. I use a stairlift and have done for many years. Absolute Godsend for me and despite SS saying it could not be done. They did not pay for it, I did through the kindness of my parents.
I have vaguely heard of the wheelchair lifts myself. Although not the type you may see here.
https://www.thyssenkrupp-homesolutions.co.uk/wheelchair-lifts/
However, you should really contact Occupational Therapy as they are clearly the experts.

Mike

I have had a Stair lift for the past 30 years. and a wheelchair platform lift out side for about 10.

internal stairlift is a good option while your ambient. I cant pull myself off mine now. I have had surveys done for thro floor lifts but these really depend on your house layout and where beams are in ceilings. To put one in my house would mean doing away with the sofa and chairs in living room and loosing a room upstairs.

It is worth asking your council OT to do assessment. or even get the companies out yourself to do a free survey so your armed with the info to take to OT. A internal thru floor lift if you have space would give you many more years of independence.

I would not recommend a stair climber. Paid carers will not use alone and they are not user controlled. They would most likely suggest a fire evac chair to be kept upstairs and only used in emergency’s.