  For the first time, robust superconductivity has been independently observed
in twisted WSe$_2$ bilayers by two separate groups [Y. Xia et al.,
arXiv:2405.14784; Y. Guo et al., arXiv:2406.03418.]. In light of this, we
explore the possibility of a universal superconducting pairing mechanism in
twisted WSe$_2$ bilayers. Using a continuum band structure model and a
phenomenological boson-mediated effective electron-electron attraction, we find
that intervalley intralayer pairing predominates over interlayer pairing.
Notably, despite different experimental conditions, both twisted WSe$_2$
samples exhibit a comparable effective attraction strength. This consistency
suggests that the dominant pairing glue is likely independent of the twist
angle and layer polarization, pointing to a universal underlying boson-induced
pairing mechanism.
