Thankfully, there's been a lot more yuri manga in 2020 that have focused not just on older couples but also on relationships that are a lot more complicated and ordinary like this one.
HOW DO WE RELATIONSHIP? (Tsukiatte Agetomo i Kana), by Tamifull. First published in 2019 and first published in North America in 2020.
PLOT:
Miwa has known she's a lesbian for some time, but now that she's finally starting college she's hoping to finally be able to be more open about it. On her first day of classes she meets Saeko, a bubbly, impulsive young woman who invites her to join her friends' band. The two stumble into a relationship after a drunken night out with the band, but deciding to date turned out to be the easiest part of being a couple. The hard part is dealing with communication, sex, and how open they want to be with the world about their relationship.