Retirement homes? Long-term care homes? Nursing homes? Confused?

While we're on the subject of clinics and healthcare, I had to do a bit of research on long-term care homes and retirement homes. This was not in the context of COVID-19 and the fact that the vast majority of Canada's pandemic deaths have been in care homes, but in relation to a friend who is probably going to have to make that decision sometime soon (yes, I've got to the age where friends are going into care...), and I realized that I really didn't know the difference between a retirement home and a nursing home and an assisted living home, etc, etc.
I found a good basic resource and ascertained that therefore are three main categories of senior care:

• Long-term Care Homes - also called nursing homes (which I think is more of a British term), these are group homes where seniors can live and receive 24/7 nursing and personal care, inclusing help with daily activities like eating snd bathing. These are more suited to people with more severe needs who are not able to direct their own care. Costs vary depending on whether the rooms are private, semi-private or basic (3-4 people per room), and short-stay terms are also offered. The government covers the costs of the actual nursing and personal care; residents just pay the accommodation costs.
• Retirement homes - privately-paid residenc for seniors who can direct their own care. Best for people wbo want to maintain a reasonably independent lifestyle in a safe, comfortable home-like atmosphere, but who need a bit of help with their daily living activities. They typically don't provide 24-hour nursing services, but they do usually provide two or more of: meals, bathing assistance, help with medications, incontinence care, early-stage dementia care, some nursing. doctor and pharmacy services. Within the retirement home category, though, there are four main types of care available: Independent Supported Living: a home-like environment, with the option for extra services as needed (charged separately); Assisted Living: a home-like environment with some care services (e.g. dressing, bathing, grooming and medication) included in the price, and others available at an additional cost; Specialized Dementia Care: the retirement home experience with extra services included (e.g. social, recreational and fitness activities) for those with mild dementia; Short-term Stay: for those who want to try out retirement living first, or for those leaving hospital needing a bit of extra help for a short while. Typically, retirement homes are a bit more expensive than long-term care homes, and Assisted Living (and Dementia Care in particular) are even more expensive.
• Home Care - living at home and having a care provider visit your home regularly to offer healthcare-related services like personal support, physical therapy, occupational therapy, social work, meal preparation, wound dressing, dietetics, nursing, etc. This is usually a cheaper option than long-term care homes or retirement homes, but is only suitable for someone that is still reasonably independent and largely able to manage their own care.