> I want to be able to quickly resolve any issues in person, not over voice call or slack, and I think that an environment where someone can tap me on the shoulder when they need help leads to overall higher productivity

Aside from all the other advantages of WfH that have already been mentioned in this thread (like no commute, healthier eating, more fresh air and exercise, better work/life balance etc), I really don't think this description of office-life fits my recollection of reality, at all.

In the office it was much more often that wanting to discuss something in person with a couple of colleagues would involve:

1. locating colleague 1

2. going in search of colleague 2 who isn't at their desk

3. disturbing people in the open-office environment asking where colleague 2 is

4. deciding to check again later

5. noticing that colleague 2 is back at their desk

6. looking around and seeing that colleague 1 is not at their desk

7. going over to colleague 2 and asking if they have 5 minutes

8. colleague 2 is deploying, and will be done in 15 minutes

9. ask around and discover that colleague 1 has gone to early lunch

repeat again after lunch

Now with WfH:

1. share screen with colleague 1 and colleague 2

2. problem solved after 5 minutes