Anything but inkjets, unless you are keen on printing photos. The amount of time I’ve saved on maintenance since I switched to a laser printer is astounding. Currently using an old Brother MFP I bought for $30 at the local thrift store, then $30 for a two-pack of third-party toner on eBay.

As for wireless printing, I set up an old thin client as a discrete print server.

By its limited scope of just initializing the chip, it seems a lot more benign than Intel ME, which would be a jucier target than the FSP. But no independent audit has been completed on it to my knowledge. Purism got started with an attempt to reverse-engineer it (legitimately without the leaked code!), but Intel told them to take it down, which is a bit troubling.