Do aircraft carry commercial VHF radios?
No, is the short answer. Aircraft generally only carry radios covering the bands they require as standard - i.e., those covering aviation communications and navigation. I have an airband transceiver here and it can't physically be tuned that high. As far as I know, the ones in the planes I fly are identical.
I can't see any advantage in doing otherwise, as standard, as the vast majority of pilots are not licenced to talk on such bands.
In terms of citation, here's a popular general aviation radio, the BendixKing KX 165A
https://www.bendixking.com/en/products/nc/navigation-and-communication/kx-165a

Communication Transceiver: 118.000 MHz to 13.975 MHz in 25 kHz
increments, 118.0000 MHz to 136.9916 MHz in 8.33kHz increments
(118.000 - 136.990 displayed per DO 186a and ED-23B) (8.33 kHz capable
KX 165A only) Navigation Receiver: 118.00 MHz to 117~ .95 M

And, here's another:
https://icomuk.co.uk/IC-A220T/Panel_Mount_Aviation_Radio
(From the manual: https://icomuk.co.uk/files/icom/PDF/productManual/A220-TSO-Instruction-Manual.pdf)

Frequency Range: 118.000 to 136.992 MHz (8.33khz)