I went ahead and purchased the:
Lenovo Thinkpad Thunderbolt 3 Docking Station (40AC0135US)
and am using it with a system76 laptop. Only issue is that the screen randomly discnnects and reconnects after about 5-10 seconds. This happens 10+ times a day and is really irritating.
Any idea what might be the issue? I looked at lenovo’s forumns and people mention to update the firmware maybe, but I am not sure if I can update the firmware on linux.
Could it be a faulty cable? I may try and buy a new one (if anyone has any recommendations for thunderbolt 3 cables, send my way)
Anyone else have this issue or solve it?