Looks like you can go in through the bedroom door and around the bed. I don't own one but from this floor plan and based on experience I'd have to say you can't access the bath from the main area with the slide out in.
For our type of travel, wandering around without a plan, bathroom access is a must.
You are right to be looking into this.
https://www.keystonerv.com/travel-tr...ravel-trailer/