Hamburger menu icons – Recent trend of moving away from three full-width lines to having two full-width lines and a shortened line?

Some examples in various iOS apps:

  1. US BankUS Bank

  2. RentCafe enter image description here

  3. Uber enter image description here

The first two kinda reminds me of the icon for aligning text justified left.

I’m quite curious about the reason for this change. I couldn’t really find anything about it online. Could someone provide some insight and perhaps some online resources that talk about this?