Any issues driving through the small Bosnian section enroute from Dubrovnik to Split these days. We will both have our COVID vaccine.
I don't know the situation concerning that drive, but JFYI an alternative is to avoid the border by taking a short hop on a car ferry from Trpanj (on the Peljesac Peninula) to Ploce. We used the ferry when we drove from Dubrovnik to Split in 2017; I purchased the ferry tickets in advance on-line. The peninsula was a fun drive. More details on this drive are in my trip report posted in this forum at the following URL. https://community.ricksteves.com/travel-forum/trip-reports/croatia-road-trip-aug-2017-dubrovnik-and-drive-to-split