The pager works fine and lines up nicely. I found that bootstrap sets a 10px top and bottom margin which is a terrible waste of space so added this to one of my css's and it works great. Now I have not tried it with the view control because I us repeat controls almost exclusively.
.pagination {
margin: 0px;
}
.bootstrapPager {
margin-left: 10px;
margin-bottom: 0px;
margin-top: 0px;
line-height: 12px;
}
Took me a fair bit of time to get everything set but I use plain jane <xp:pager in bootstrap and it works great. I think the video that David points to is for earlier releases using bootstrap4XPages I have found with the little over-ride above I don't really need to do much else with the standard pager in bootstrap. I find that OneUI says this is the way this control should look and if you don't like it tough. I have just finished converting my app from OneUI to bootstrap and am pretty happy with the result.