I was wrong.
The Last Bookshop in London by Madeline Martin is not cheesy.
It is, in fact, quite lovely. I must have been in a mid-winter funk when I read it the first time. This time, I was quite taken with it. Now, that said, it is not as strong as The Librarian Spyor The Guernsey Literary and Potato Peel Pie Society, or my real favorites, Blackout and All Clear. But, it is absolutely lovely and a fun read that I will re-read again.
https://plumfieldmoms.com/plumfield-moms-book-reviews/the-last-bookshop-in-london