When moving a few years ago I also needed to simplify so for the main living space I also went soundbar. I have the Sony HT-A7000 with the smaller sub. It works in conjunction with my Sony TV in a way that the TV speaker provides the center channel and the bar does the rest. Not as immersive as my basement system with a full compliment of speakers but more than good enough. The bar has a calibration program that tweaks its use for the room, with full Atmos as well.
Replacing surround with sound bar
The Bryston SP3 processor I use for surround doesn't take eARC so I need an eARC/HDMI converter. It's messy. For simplification I'm thinking of replacing the surround gear (SP3, 2 NAD stereo amps, 4 KEF LS50s, and a large center speaker) with a Sony HT A-700. The audio of the new 85" Sony full array TV is quite good, so I don't bother with surround. Any recommendations?