Hope you had a nice birthday Francois, given the circumstances. Wish you all the best!
My father and my father in law had their birthdays in March and April while we were in full lockdown. We had a video call with some cup cakes and coffee, but it was really a bit sad not to be able meet - especially for our daughter not to be able to give their grandparents a hug. As addult you can rationalize the situation, but for young children it is quite difficult.