Get two pieces of paper on one write down all the things you are looking for in what you want to buy, on the other all the things you don't want
ie freehold V leasehold, house v flat, old v modern, electric only or gas and electric, types of heating, areas you like, areas you don't like, what you want to live near ie shop selling milk or if you don't drive a supermarket.......
it is difficult and odd times at the moment but always check a place during the daytime, night time and weekends to check for noise/smells/pollution from schools/factories/neighbours Etc. Though at the moment you might not get a true picture. A solicitor should check for local planning issues like a factory or high rise being built next door. When viewing, check everything, open and close windows, run all taps to check for both decent flow of water, cleanness and drainage, open and close all doors, look inside and out for anything that doesn't look right, cracks, lopsided roof Etc. If happy, I would normally go for a homebuyers report. This should flag up any issues, major or minor and may recommend some sort of structural survey after that (A full structural is pages and pages of jargon).
If a flat, always go for leasehold. We have people we can call on to help with structural type maintenance and repairs, sort out disputes with neighbours n stuff.
If in England, there is no financial commitment until you have either paid anything out on solicitors, surveyors Etc. or signed contracts.
I don't know how viewing is working with the pandemic at the moment. Sometimes you arrange a viewing with the selling agent, who might show you round
the place or maybe the sellers themselves will show you around. Sometimes, estate agents arrange an open house and literally through the doors open for a day or weekend and you just turn up.
As a cash buyer you are in a great position to bargain but beware of agents who will enter you into bidding wars (real or imagined) with other buyers. The
last time we bought, we made an offer on a place and said we would not get involved in a bidding war. The agent still tried it on and we walked away. The agent even came back and said the buyers they accepted the offer from had pulled out, were we still interested - not a chance!
You may wish to avoid the likes of Foxtons!