Help for a new user: map module and exporting library

After a year of getting totally confused between Lightroom, classic, cc, lightroom desktop, lightroom ecosystem?! and backing off every time I tried to migrate to Adobe,  I'm finally having a go this weekend. I've started with classic. It was a bit of a nightmare importing my photos (freezing, slow etc) but finally there. Next i'm going to try the cloud version to see which would suit me best before I commit to using either one. 

If any one could help with these questions I'd be very grateful, as i'm struggling to find the answers.. 

1. Does the cloud version have a map module or way to search by location etc like classic (or apple photos/google)? 

2. If I end up using the cloud version and in two years time I decide to move to a different service, how easy / reliable is it to be able to export the whole library in one go (photos and videos) and will metadata like people and other tags be exported as well? (I want to avoid being locked in).

3. Does anyone know how much 2TB cost (as opposed to the 1TB that comes with it)?

Many thanks!