SMS routing and billing systems did cost money.
Especially billing, as the standards had nothing for it, so it was done by 3rd party software for a very long time.
All mosfets are like that.
The marketing folksbL at Toshiba just were not able get it removed, or they have had one too many complaint from folks running them near the absolute max while not cooling them properly.
Naturally there needs to be filtering and some sort of analog frontend.
My main point was that mainstream rigs now do direct sampling, instead of zero-if or superhet with dsp IF.
And WSPR sure is magic, people do thousands of km with it off an rp2040 gpio pin.
The popular IC-7300 transceiver from Icom does that.
Receiver samples the whole band and does downconversion in the digital domain (DDC) and same for the transmitter (DUC).
On the hobbyist side there is the TRX Wolf by UA3REO.