I’m so sorry you’re struggling so much @Parrotsandpineapples
They’re definitely not doing this to help you, they want you to leave and want you to agree to accept a pay off in exchange for settling / waiving any claims you may have against them for managing you out.
I’m a lawyer and use to deal employee issues in house, and I also have a chronic joint condition so I’ve had to walk this line carefully myself when I’ve been struggling with it.
The reason companies offer a settlement is that under English employment law they have to make ‘reasonable adjustments’ to accommodate an employee’s ‘disability’. But if they make those reasonable adjustments and the employee still can’t perform their role because of their disability, then they can legally fire the employee. However what amounts to a reasonable adjustment and what is a disability isn’t defined - it can sometimes eg include depression - so ultimately these cases often end up in an employment tribunal. Those decisions are public and cost money so many employers prefer to settle and move on.
Do you think there’s a prospect of you being able to return to work if they make the adjustments you’ve suggested? You said you’ve seen occupational - just be very careful what you say to occupational health. They are positioned as being there to help you, but ultimately they are employed by the company to assess whether or not you’re fit to work, it’s protection for the company in the event it leads to a claim. It sounds though like occupational health here made some recommendations and didn’t say there’s no way you can perform the role.
Do you agree that the company isn’t the right environment for you? Obviously there’s a reason your manager wants that. But I think if it’s possible try to get some legal advice before the meeting. A phased return sounds reasonable to me, and you’ve only just started back right and they’re already suggesting it’s not going to work. I know someone who successfully returned to work after a nervous breakdown (he had a year off) but it was very much a phased return which took time. He’s still at the company 4 years later and doing well now
If you feel like this role is contributing to your struggles in any way or is a bit toxic, you may be better off taking a settlement that will cover you until you find a new job. But if you think they’re not giving you a fair shot at a return, I would speak to a lawyer
Edited as sent to soon: there will be brighter days ahead, sending hugs xxx