Please help sorting disk volumes and time machine - imac late 2013 patched to Ventura 13.7

Please help sorting disk volumes and time machine - imac late 2013 patched to Ventura 13.7

I have just used the patch to upgrade to Ventura. I used the external SSD to create time machine before I ran the patcher. I appear to have made a mess of the disk volumes - see image below. I need to

A) tidy up the disks to a single disk

B) restore my old files and programs/apps from the SSD time machine.

I was previously on Catlina (rubbish)

https://preview.redd.it/5a9lkoz2oird1.png?width=1123&format=png&auto=webp&s=de6f04c79090bce17fe31b6c82f3589cee1abc32

https://preview.redd.it/1epy3qbroird1.png?width=281&format=png&auto=webp&s=0278a3b6f384e595c7312f468981f215e24e3f25

Thanks in advance!

submitted by /u/Mediocre_Focus_7803
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