Advice on dealing with ADHD and remote work?

In the past, I've done hybrid work, I'd finish all the easy stuff at home and keep the hard stuff for the office, and I'd go in for a couple of days to finish it all.

I got a really good offer from a different company, and I've taken it, but unfortunately, this company only does remote work and does not provide you with any equipment. Problem is that I have a powerful desktop but no laptop, which means my options are either to buy my own laptop and work somewhere else when I need to get work done or make a partition/new user on my desktop that's strictly for work, but I am scared that its going to affect my productivity.

Any input or advice would be appreciated. Thank you.