  This paper aims to perform a phenomenological parametrisation of the standard
cosmological model, $\Lambda$CDM, to weigh the different physical processes
that define the pattern of the angular power spectra of the Cosmic Microwave
Background (CMB) anisotropies. We use six phenomenological amplitudes to
account for the Sachs-Wolfe, early and late Integrated Sachs-Wolfe,
polarization contribution, Doppler and lensing effects. To do so, we have
adapted the CLASS Boltzmann code and used the Markov Chain Monte Carlo (MCMC)
sampler of Cobaya to explore the Planck 2018 likelihood to constrain different
combinations of cosmological and phenomenological parameters. Observing
deviations of the mean values of the phenomenological amplitudes from the
predictions of the $\Lambda$CDM model could be useful to resolve existing
cosmological tensions. For the first time, a comprehensive analysis of the
physical processes of the CMB has been performed using the Planck 2018
temperature, polarization and lensing power spectra. In a previous work, the
phenomenological amplitudes were constrained using only the TT data, however,
by including the polarization and lensing data we find that the constraints on
these physical contributions are tighter. In addition, some degeneracies that
appear only when considering TT data are completely broken by taking into
account all Planck 2018 data. Consequently, models with more than three
phenomenological amplitudes can be studied, which is prohibitive when only the
temperature power spectrum is used. The results presented in this paper show
that the Planck experiment can constrain all phenomenological amplitudes except
the late Integrated Sachs-Wolfe effect. No inconsistencies were found with the
$\Lambda$CDM model, and the largest improvements were obtained for the models
that include the lensing parameter, $A_L$.
