Well, yes, you’d have to pay attention to level differences. A “consumer level” device will output less hot signals, so there may be either inconvenience or maybe a loss of quality switching between the two. You’d just have to read up on it I guess (i.e. manuals).
Another potential option, still using an interface, is IF your computer has for example spdif out and your interface has spdif in you can route your audio digitally from the computer output straight into your interface, and using the interface software that’s included (?) you can then route that to your outputs. This is how I used to have it set up at home and at work.
At work using a mac tower the digital optical spdif output went to the Pro Tools HD interface spdif input. That’s how we got audio through from the computer when we needed hi quality signals. At home I used spdif out of my motherboard’s rca connector, and then via an adapter to my Lynx TWO-B’s spdif bnc input. In both cases though I ran audio through software to route it, which wasn’t always convenient. But you can check with your interface’s software if there’s an easy way to set it up.
What computer do you have?