I am more pessimistic than you. Surely, to seal a multi-million deal a higher executive will probably go and visit the client, but some of the earlier meeting and proposals will surely continue to be done online, probably through Teams etc., and very likely from home. Two studies released today, one just surrounding UK and the other a global study suggests that the requirement for office space is going to fall considerably, and that will include meeting rooms.
I'm not sure when you were in business, you may still be and your sector somewhat different, but in my experience the "meet and greet" business lunch has, I suspect from in London, largely become a thing of the past. For the preceding 5 years up until I left my business roll in 2014 I didn't do one business lunch with a client, and they were frowned upon by the MD (Arkright!!) even back then.