Even with that, you don't have input and outputs.
A oldish but capable AVR isn't that expensive- and the features outweigh the cost.
How would you connect a BD player, a PS3, PS4, PS5, Xbox 360, Xbox One, Xbox X, record player, tape deck, CD player, connect headphones, your speakers, a subwoofer or two, multi room, audio streamer, perform time alignment, room EQ, multi channel movie decoding/routing (especially atmos as PC don't do that) video streamer, and output video to a TV and projector?
A PC and active studio monitor speakers is ok if you have just one input. Some have a couple of inputs, but still not enough, and the ones that do- do they have remote control input selection (or front of speaker input switch) do they have multiple HDMI, analogue, coaxial and optical inputs? And not running a sub, or if you do through the PC- which again means one input only. If they do have a sub out, then how does that work, is there a master/slave connection where master speaker has sub out you then select whether this is on or off, and the speaker crossover is changed to match?