You mention 'infant seat' and "won't be front facing"... so not sure if you really mean infant - typically REAR facing... or child - typically forward facing...
I wouldn't install an infant seat any way but rear facing... The dinette is likely the only choice on most rigs to accommodate that.. A prior rig didn't have seatbelts in that bench though...
For a child seat - I did strap one in side facing once... Prefer the dinette seat there too - with table (head knocker) removed... I've tossed around ways to add a shoulder strap in that area - but we don't travel that way often.
Not yet retired...
Florida (Michigan transplant)
2014 Hurricane 32A
2000 Infinity (previous)