I just returned from a short visit to Paris. It was busy, but not crazy. The metro was, as always at times, crowded, but not packed. Everywhere I went I was so pleased by welcoming attitudes. I had a great time at a little Vietnamese restaurant as the waitress and I tried to figure out the prix fixe menu. Me with little French and her with little English. It was quite fun, and I had a wonderful meal.
Other short notes: The Medici Fountain is in the process of being cleaned. It has been restored to its former glory in white and limestone colors.
The Carnavalet Museum has reopened after 5 years. It is glorious and free! Make a time reservation. The mansion was built in 1548. Madame de Sevigne resided there, 1677-96. A mini Versailles plus centuries of French history. And not crowded.
The Nissim de Camondo Museum. So beautiful. A mansion built in the early 1900s on the edge of the Park Monceau. The owner, Moise de Camondo dedicated himself to the accumulation of of art and furniture from the 18th Century. It was nearly empty when I visited. Again, timed reservation.
Oh, yes, and perfect weather.