They are not Part 95 approved or Type-Accepted radios.
However, Part 95 does allow the " USE" of LMR type-accepted radios, on Part 95 freqs providing that they are used/operated in accordance with the respective Part 95 subparts in the radio service where that radio is being used.
In this case of operating on 462.5625 MHz with a GMRS license, the station operator "using" his XPR7550e radio, is allow up to 5 watts ERP, and must meet the other requirements insofar of emissions, frequency accuracy, etc. as required by those rules in subpart E. In other words, a LMR stations cannot exceed the power, accuracy, and emissions requirements as Part 95 Subpart E Type-Accepted radio must adhere to.