Fridays are relaxed and saved for more social media and network interactions.
Since people often take a more chill approach to the day, it becomes the most effective day of the week to meet others (so long as it's not "hey let's start this project together"!)
It feels more relaxed usually, we have a team call each Friday, sort of a sum up, just to recall everything we did this week and what we're planning to do next. It's just a nice day, a finish line, you know.
On one hand more relaxed. On the other I have a lot more motivation and willingness to work hard because I know my rest is just around the corner. And I feel better resting when I know I did a good job and did my best.
Thrive