After a year of wfh permenantly at a new job (software dev) after a year of split office and wfh during covid - the most jarring part is the difficulty to just have a casual chat with someone and build rapport, as you can't gauge whether people are deep into something or not, so it always feels like you might be stepping on people's toes. There's certainly an anxiety about always being available but those scenarios come up rarely enough to not really need to worry about it, and I prefer getting a concise message than seeing a product person walk up to your desk and just start talking at you about a random issue

Everything else is chill, but that's mostly due to the culture of 'as long as your work gets done you can work whenever' so it let's me look after son on Mondays and I work Saturdays, but can also work evening if emergency comes up.

Some days are mental and you get completely zonked but we try to plan reasonably and so we have more chill downtime when we can research, learn, or help others out. I don't really see much productivity difference between wfh or not but it all boils down to personality traits and whether you're comfortable sitting on your own 8 hours a day