Good washer-driers are had to find but being able to put a single cycle on and come back to fully washed and dried clothing is a huge improvement for ADHD folk over having washing and drying as a two separate processes. Definitely worth the investment.
In the UK rental properties nearly always include space for a washer and landlords are almost always thrilled when you say “hey, I have my own machine I want to put wear on instead of yours so could you please take that one out.” (Assuming they even provide white goods as part of the rental agreement in the first place.)