@Daniel Felardeau
Based on your description, I understand that you want to set a connection between a list web part with InfoPath form and a list web part to get filter values from list web part with InfoPath form.
Per my test, it can work. Edit page -> Connections -> Get filter values from -> Connection settings.
When you select title equals 1 in the list, items with title equals 1 will display in the another list.
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