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Hubble's law states v = H0.d, so a galaxy 100 Mpc away recedes at about 7000 km/s if H0 is 70 km/s/Mpc. The reciprocal of H0 is the Hubble time, 13.97 billion years - close to the age of the universe because the expansion rate has not changed enormously over cosmic history.
Hubble's law
v = H0 x d
Hubble time
t(H) = 1 / H0, about 977.8 / H0 in Gyr
Because supernova distance ladders give about 73 km/s/Mpc while cosmic microwave background fits give about 67. The gap is the Hubble tension.
No. Every observer sees the same recession pattern, because space itself expands rather than galaxies flying away from one point.