tokens: The authors thank W. Dziembowski for his contribution to the theoretical predictions for activity-related frequency shifts in Metcalfe et al. ( 2007 ). The authors thank D. Bossini for providing the evolutionary tracks shown in this paper. A.R.G.S. acknowledges the support from National Aeronautics and Space Administration under grant NNX17AF27G. T.L.C. acknowledges support from the European Unions Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 792848 and from grant CIAAUP-12/2018-BPD. W.J.C., G.R.D., R.H., and Y.E. acknowledge the support of the UK Science and Technology Facilities Council (STFC). M.S.C acknowledges support from FCT—Fundação para a Ciência e a Tecnologia—through national funds and by FEDER through COMPETE2020—Programa Operacional Competitividade e Internacionalização—through the grants: UID/FIS/04434/2019; PTDC/FIS-AST/30389/2017 POCI-01-0145-FEDER-030389. C.K. is supported by the Villum Foundation. Funding for the Stellar Astrophysics Centre is provided by the Danish National Research Foundation (grant agreement No.: DNRF106). T.S.M. acknowledges support from a Visiting Fellowship at the Max Planck Institute for Solar System Research. S.M. acknowledges the support from the Ramon y Cajal fellowship number RYC-2015-17697. R.A.G. acknowledges the support from PLATO and GOLF CNES grants. M.N.L. acknowledges the support of The Danish Council for Independent Research—Natural Science (grant DFF-4181-00415). R.K. acknowledges the support of the STFC consolidated grant ST/P000320/1. V.S.A. acknowledges support from the Independent Research Fund Denmark (Research grant 7027-00096B). Software: SciPy (Jones et al. 2001 ), NumPy (van der Walt et al. 2011 ), Matplotlib (Hunter 2007 ), scikit-learn (Pedregosa et al. 2011 ), MESA (Paxton et al. 2011 , 2013 , 2015 , 2018 ).
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