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It has recently been reported that hydrogen-rich materials under highpressure trap magnetic flux, a tell-tale signature of superconductivity[arXiv:2206.14108v1]. Here we point out that under the protocol used in theseexperiments the measured results indicate that the materials don't trapmagnetic flux. Instead, the measured results are either experimental artifactsor originate in magnetic properties of the sample or its environment unrelatedto superconductivity, Together with other experimental evidence analyzedearlier, this clearly indicates that these materials are not superconductors.{\bf In a second part, we discuss magnetic field screening and expulsion.}

Evidence against superconductivity in flux trapping experiments on  hydrides under high pressure & On magnetic field screening and expulsion in  hydride superconductors