  In the next years, the energy and intensity frontiers of the experimental
Particle Physics will be pushed forward with the upgrade of existing
accelerators (LHC at CERN) and the envisaged construction of new machines at
energy scales up to hundreds TeV or with unprecedented intensity (FCC-hh,
FCC-ee, ILC, Muon Collider). Large size, cost-effective, high-efficiency
detection systems in high background environments are required in order to
accomplish the physics program. MPGDs offer a diversity of technologies that
allow them to meet the required performance challenges at future facilities
thanks to the specific advantages that each technology provides. MPGDs allow
stable operation, with environmentally friendly gas mixtures, at very high
background particle flux with high detection efficiency and excellent spatial
resolution. These features make MPGD one of the primary choices as precise muon
tracking and trigger system in general-purpose detectors at future HEP
colliders. In addition, the low material budget and the flexibility of the base
material make MPGDs suitable for the development of very light, full
cylindrical fine tracking inner trackers at lepton colliders. On-going R&Ds aim
at pushing the detector performance at the limits of each technology. We are
working in continuing to consolidate the construction and stable operation of
large-size detectors, able to cope with large particle fluxes. In this white
paper, we describe some of the most prominent MPGD technologies, their
performance measurements, the challenges faced in the most recent applications,
and the areas of improvement towards efficient tracking and Muon detection at
future high energy physics colliders.
