  We present a new perturbative full-shape analysis of BOSS galaxy clustering
data, including the full combination of the galaxy power spectrum and
bispectrum multipoles, baryon acoustic oscillations, and cross-correlations
with the gravitational lensing of cosmic microwave background measured from
\textit{Planck}. Assuming the $\Lambda$CDM model, we constrain the matter
density fraction $\Omega_m = 0.3154\pm 0.0089$, the Hubble constant
$H_0=68.34\pm 0.77\,\mathrm{km}\,\mathrm{s}^{-1}\mathrm{Mpc}^{-1}$, and the
mass fluctuation amplitude $\sigma_8=0.686\pm 0.027$ (equivalent to $S_8 =
0.704\pm 0.031$). Cosmic structure at low redshifts appears suppressed with
respect to the Planck $\Lambda$CDM concordance model at $4.5\sigma$. We explore
whether this tension can be explained by the recent DESI preference for
dynamical dark energy (DDE): the BOSS data combine with DESI BAO and
PantheonPlus supernovae competitively compared to the CMB, yielding no
preference for DDE, but the same $\sim 10\%$ suppression of structure, with
dark energy being consistent with a cosmological constant at 68\% CL. Our
results suggest that either the data contains residual systematics, or more
model-building efforts may be required to restore cosmological concordance.
