Hello I hope the assessment goes well tomorrow. In my experience the assessors are good at suggesting things that might help.
I have two dcs at university both with disabilities. Although neither have CFS they do have conditions which cause pain, fatigue and difficulties with concentration over long periods.
Things they have had through DSA which have helped to varying degrees are:
suitable laptops
ergnomic equipment to use the laptop (stands, adapted key board, adapted mouse, wrist rests) which all reduce the fatigue involved in typing
suitable bag to take equipment around campus
software (speech to text, text readers, programmes to help with note taking and structuring essays)
small recorder to record lectures so they don't need to take notes - obviously not necessary when lectures are online but useful once things are live again.
a printer and paper/ink allowance to make it easier to print off or photocopy study material
taxi fares to and from classes if public transport is difficult (obviously once face to face teaching resumes)
an ergonomic study chair which reduces pain and fatigue from sitting.
a mentor to discuss how they are coping and to help with structuring work
They also have exam arrangements. The DSA assessment can make recommendations but the university needs to make the actual arrangements. These can be extra time, rest breaks, small room, taking something to eat into the exam (with rest breaks and extra time exams can get long)
DSA will send his assessment to Disability Services at the university but it is essential that he makes contact with them himself for exam arrangements, so that they can liaise with his department if necessary and to make any physical access arrangements once he is back to face to face teaching.
Is he planning to live at home the whole time?
If not there are also adjustments that can be made to university accommodation.
I hope that is helpful. I would be pleased to answer any further questions if I can.