Unfortunately TalkTalk probably don't know but you would be contacted befotehand and will then have a chance to discuss your needs.
If you have special requirements you will not be transferred to full fibre until those needs are met.
Have you registered as vulnerable? If not I'd recommend you check this page and do so.
https://community.talktalk.co.uk/t5/Articles/Registering-your-accessibility-requirements/ta-p/258302...
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link here:
How to contact TalkTalk Broadband - Help & Support.
