Is there a way to use grouping settings for Bootstrap Tabs in Views?
There isn't a way at the moment to use the built in views group by function, but luckily there is a way to accomplish similar behavior if you install a contrib module called views field view.
The premise being, tabs separate a listing of entities into multiple groups based on a common term.
Not like this: https://monosnap.com/file/K4W6m63A1jsy7frYdL8P0LfcFQPj29
But like this: https://monosnap.com/file/Q8WsRSgJU7f8AYFMMomDmcIjyOAXZE
In order to make this work, you need two views, One with the tab output, and another contextually filtered as a field within the first.
View 1 (list of taxonomy terms) would look like this to create the labels for the tabs: https://monosnap.com/file/h3fDlfgy2HwlHT2Y3Lywe8IroagDyE
View 2 (Use a relationship to call the nodes that are referencing each term and a contexual filter to limit the nodes per term id): The view field here is the key: https://monosnap.com/file/NtIumKYmsws62o4kTAnU72mt1LPZZq
Once you have the two views you can set the argument on view 1 The view field here is the key: https://monosnap.com/file/EzgRlcjLgr0au7TIWnTLbWEosCHwcP
Unfortunately my reputation is too low to comment on Chris' answer; however, there is one important piece missing that took me awhile to figure out is that in order to have your tabs show only the unique taxonomy terms as shown in his "not like this / but like this" photos, you'll need to set "Use aggregation" on the "View 1" view to Yes.
Also, I have to disagree with Antonio's comment - I did find that the Relationship (which in Drupal 7.63 is called "Content: Taxonomy terms on node") was necessary on both views.