Swayman's level of play is tough to qualify. On the one hand, among goalies with 20+ starts he is 6th in goals against avg at 2.33 and 9th in save % at .916 which would certainly put him in solid "1-1B" territory. OTOH playing behind that same D Ullmark's GAA is 1.86 with a .938 SV %, both of which lead the league. Swayman's play took a dip in his first few games after injury against quality opponents (he got a soft reentry vs Chi), he was noticeably struggling vs the Panthers and Vegas. Since then he has been back in form minus that ****-show of team D breakdown vs Seattle. Yeah, everybody on the roster seemed to forget how to play D in that one (allowing 41 shots is inexcusable) but that doesn't change the fact 3 of those goals were weak, 2 of them inexcusably so. Still, every goalie has the occasional bad night just like every goalie has nights where the puck just hits him, Ullmark included.
One thing that sticks out to me about the B's goaltending this season is they are both playing a bit deeper in the crease area than they were last year. That allows for both less legal interference and just that ouch more room for the D to make plays around the net. Ullmark is far and away doing better in that department. When Swayman has scuffled has been on those occasions when he has played higher, it's a small difference but if you watch it's definitely noticeable. Again, it's nitpicking but it's there.
Overall, the goaltending on this team is hard to fault. It has been damn good. OFC with the level of team D the B's provide it should be.