There are alternate views and research in the scientific world, it has always been that way. In cosmology, there are competing fields of research involving the different interpretations of the parameters.
In October 2018, scientists presented
a new third way (two earlier methods, one based on redshifts and another on the cosmic distance ladder,
gave results that do not agree), using information from
gravitational wave events (especially those involving the
merger of neutron stars, like
GW170817), of determining the Hubble constant.
[49][50]
In July 2019, astronomers reported that
a new method to determine the Hubble constant, and resolve the discrepancy of earlier methods, has been proposed based on the mergers of pairs of
neutron stars, following the detection of the neutron star merger of GW170817.
[51][52] Their measurement of the Hubble constant is
70.3+5.3
−5.0 (km/s)/Mpc.
[53]
Also in July 2019, astronomers reported
another new method, using data from the
Hubble Space Telescope and based on distances to
red giant stars calculated using the
tip of the red-giant branch (TRGB) distance indicator. Their measurement of the Hubble constant is
69.8+1.9
−1.9 (km/s)/Mpc.
[54][55][56]
In March 2020, Lucas Lombriser, physicist at the
University of Geneva, presented a possible way of reconciling the two significantly different determinations of the Hubble constant by proposing the notion of a nearby vast "bubble", 250 million light years in diameter, that is half the density of the rest of the universe.
(wiki. hubblelaw)