Lockdown on London Lane by Beth Reekles starts with Imogen creeping out of a date's room, just to find she's trapped in the building. After a confirmed case, the building's under lockdown. The next chapter changes perspective to a different unit in the building -- for this couple, one of them is trapped in the building and the other outside it.
I really like the cover. It has the feel of an updated, less suspenseful Rear Window. The colors and font feel fun, even though the book is set in the time of COVID-19.