Some people consider that using appropriate language is overly PC or polite. However language holds strong connotations and can have negative implications for people with disabilities
"Person-first" language is a way of describing disability that involves putting the person before the disability, rather than placing the disability first and using it as an adjective
Also, when using the general term disability - the social model would advocate for "disabled person" over "person with disability" - WHY DO YOU THINK THIS IS?
Wheelchair bound is 'shackling' language. Better term to use is "Mary is a wheelchair user". Bear in mind that not all people who use wheelchairs use them all the time.
"The" disabled refers to a group of individuals as a collective noun. This removes the person/people factor. Instead use person with disabilities or disabled person.
"Suffers from/victim of" portrays that disability is a tragedy. The person may not be 'suffering' at all. Instead try "John has a brain injury". People can decide themselves if they are suffering or not and avoid the melodramatic language.
Disability is constantly framed as a 'challenge' that must be 'overcome'. There is a lot of pressure put on people to be brave and inspirational. Instead use "Cara has a physical impairment".