Desk chair support - Hip replacement planned

Hi there,

Recently been diagnosed with advanced arthritis and waiting for bariatric surgery and then hip replacement.

Working from home most of the time due to organisational change from the pandemic so have an office with a new office chair.

Issue is that the office chair isn't helping my hip what so ever - started hurting when I sit on it so have resorted to working off a couch with my laptop as the couch is softer.

Question is has anyone had the same experience and if so any recommendations for chair supports to alleviate the pain.

Many thanks for any advice.