Meh. (1) trump will have a very special incarceration, probably some form of isolation so that he is protected. (2) I think there will probably be secret service protection (could you imagine that assignment!). (3) he signed the First Step Act, which actually reduced federal incarceration by quite a bit

Apparently he would keep the secret service protection, although this is uncharted waters for sure. Opening Arguments podcast OA758: Re-Indicted And It Feels So Good! seems to agree.