June 1 is the final day for NHL teams to sign draft picks that they hold the rights to for certain leagues, most notably the CHL, from which players that are picked have two years from their draft year to be signed. Meaning, today (June 1, 2022) is the final day for CHL players taken in the 2020 draft to be signed by the team that picked them.
The Flyers have already signed three of their picks from that draft — CHL forwards Tyson Foerster, Zayde Wisdom, and Eliot Desnoyers — and they’ll all be on the Phantoms next year.