No. Both firmware variants generate recovery phrases with the same strength of randomness. A wallet created on the No-Radio firmware is exactly as secure as one created on the standard firmware.
Why the question comes up
Jade's built-in hardware random number generator draws on several noise sources, and one of them is the radio hardware used for Bluetooth. Because the No-Radio firmware removes Bluetooth support, some users assume it must also produce weaker randomness. It does not, because of how the No-Radio firmware handles the radio hardware at boot.
How the No-Radio firmware keeps full entropy
The No-Radio firmware removes the drivers Jade would need to communicate wirelessly; the radio hardware itself is still on the board. During boot, Jade briefly samples raw electrical noise from that hardware and adds it to the entropy pool, using an ESP32 function called bootloader_random_enable(). The device cannot pair, connect, or transmit on this firmware at any point; the radio hardware is read only briefly during boot, as a noise source.
From there, both firmware variants work identically. Jade keeps mixing entropy from several independent sources and sensors, including the timing of your button presses, into an accumulator modeled on the one Bitcoin Core uses, re-hashed with SHA-512 every time entropy is requested. Every request draws a full 256 bits of entropy from this pool, on either firmware variant.
The implementation is public in main/random.c, including the boot-time radio sampling used by the No-Radio firmware. For the full list of sources, see How does Jade generate my recovery phrase?
Using the Blockstream app adds another source
When you set up Jade with the Blockstream app, the app contributes additional entropy from your phone or computer. Mixing in another source can only increase the randomness in the pool; it can never weaken it. This holds regardless of which firmware variant you run.