No, a bridge camera is a compact with a big zoom bolted onto the fron
Not at all true. Bigger sensors, better lenses (wider, bigger, better quality not just more zoom), more manual oontrol, RAW capability etc etc.
Bridge cameras are between compacts and SLRs in terms of quality and functionality. That’s why they are called bridge cameras.
I have an SLR. All the pictures hanging on my walls are taken with my old bridge camera from 2004, and they all look great. My folks have a print from my 2001 vintage 2.1MP ‘bridge’ camera, and it’s truly stunning.
One thing to note when considering bridge cameras is that you always get good macro function due to the smaller sensor design, whereas with a SLR you probably need to buy another lens for that. You can also get good zoom capabilities at the same time, so you might get three lenses in one.
Quality wise, you won’t notice the quality difference between a good bridge and an SLR unless you go looking for it.