For #2, OWC puts a screw hole above their dock's thunderbolt ports so that you can attach a stabilizer around the cord

https://www.owc.com/solutions/thunderbolt-dock

It's a poor imitation of old ports that had screws on the cables, but should help reduce inadvertent port stress.

The screw only works with limited devices (ie not the Mac Studio end of the cord) but it can also be adhesive mounted.

https://eshop.macsales.com/item/OWC/CLINGON1PK/