@prcguy - Zero problems with my APX 7000xe whether direct or via repeater on amateur and GMRS freqs. The other radios would have also been Baofeng, Yaesu, Kenwood, Icom, etc. over the years. While I rarely use the 7000 for GMRS, I am sure I also tested it using my Motorola XTS and XTL 5000 radios, as I use those most often with GMRS. I even use a Motorola RLN6554 BT microphone and never had issues with my TX/RX audio on GMRS/amateur repeaters or simplex using the 7000.
I believe my APX7000xe is quite the Frankenstein as it is now, but it is what I take when camping as it handles the amateur VHF/UHF bands as well as MURS and GMRS with zero problems. While analog is king, I mostly use it for P25.
I am not even a Motorola novice as you know, but happy to review whatever my settings are in CPS. Still, it appears you moved on after the cost analysis and problem. I would have done the same, but the 7000 was a gift and I have local friends with the equipment to align it if needed.