We'd need to know more about your circumstances to advise, a crystal ball would also be helpful.
You would need to work out:
Can you afford the mortgage? What percentage of your take home pay would the mortgage be?
Do you have any wiggle room if rates rise?
How does the mortgage compare to rent? If it is the same or slightly higher, you could still be better off with a mortgage unless interest rates soar. We are in a strange time at the moment with rising rents.
Would you be happy to stay there for the next 5/10 years if you can't afford to move? Or is it a situation where you would not be able to rent anywhere larger?
Only you can make the decision, I can only give my experience after the financial crash of 2008 where we were priced out due to high prices, we were able to buy when the prices dipped and since then they have sky rocketed with a slow decline at the moment. I actually thought prices would continue to fall in the early 2010s, instead they have risen sharply but we needed somewhere to live, could afford it and were planning to stay for years. The house went up by 60%, we couldn't afford it now. This isn't a good thing, high house prices are bad for everyone apart from the super rich who can own them as additional assets without having to live in them. It would be much better if they stabilised. We need more social housing, without Right to Buy decimating the available housing stock as relying on the private rental sector is not working for anyone, and buying is seen as the only way to have stability and is unaffordable for many.
This is interesting, unfortunately I think he may be right, they might rise when interest rates are cut