Has anyone ever done a stained plywood floor?

I know it sounds cheezy but hear me out… I’ve seen that you can use an upgraded version of the plywood used for sub-flooring (I think it’s a premium white birch) and just stain and seal it for your actual floor. It’s cheap and leaves your options wide open for different flooring in the future because it could just become your sub-floor. So my question is, has anyone ever actually done this or seen this?

I actually did it in a client’s store. We stained it, sealed it with polyurethane and it looked beautiful stood up to the customer traffic and added a great ambience to a salsa store. White birch is a good choice. A couple of hints. One be sure that you lay it all out first, particularly if you want the grain all running the same way. Second, you have to match the edges so that the seams are exact and use wood glue to adhere the edges. Inspect each piece of plywood you intend to use for warpage because warped pieces won’t lie flat. Finally, if you are adhering the wood to cement, Locktite gives you the fastest grab.