Re: Another Brexiter here...
One of the things I am going to mention in my response to the document is the ridiculous tests they use.
Using your own equipment simply isn't an option in IT, most Public Sector organisations won't let personal devices anywhere near their network and quite rightly. Similarly the "Right of Substitution" clause is also nonsense in much of the public sector as HMRC (for example) would require SC Clearance or similar and a vetted (by them) contractor.