What satellite services does Gaia GPS support?

I'm shopping for a new phone--my S20 screen repeatedly failed ($$$) so I've tossed it and reverted to my  trusty old S5 which has no GPS capability.  I'm really missing Gaia GPS.

Some new phones utilize GLONASS, others Galileo and/or GPS.  I don't want to buy a new phone and then find out it won't work with Gaia.

Could you please list the GPS location and tracking services that Gaia GPS supports?  Thanks.