They have been almost the only ones to tackle ports of AAA games and that's very commendable; also, their commitment to regularly improve on their port is remarkable deserves a thousand praises.
That being said, none of those port strikes me as "Wizardry" or whichever superlatives we hear everytime on release. Rocket League was incredibly rough before Psyonix took the matter into their own hand. Doom was serviceable on release, and many people thought on release that it was the ceiling of the Switch. Yet, we can see that they still had quite a significant headroom when comparing version 1.0 to this one. I wonder how high it could go if the port had been made with more resources. Same goes for Wolfenstein which was massively improved as compared to the release version; but we're just so happy (I totally include myself in the "we") that these games come to Switch that we are willing to often overlook their technical shortcomings, even when the console is actually capable of much better. The latest example is Warframe; the fact that the game runs significantly worse than on my 2016 Dell XPS, or than on a GPDWin 2 for example, is quite disappointing for port specifically optimized for the console.
The use of the word "overrated" may seem a little harsh and provocative, but in no way do I mean that they are bad; they are doing to work of the Lord by bringing those games, they constantly improve and I've been here day 1 every time, and will be for the next Doom. Panic Button is undeniably a good port studio and they seem to be working with limited time and resources, which probably explains a lot about the shortcomings of their ports. In a hindsight, I should have said that their ports were overrated; I have no idea of the constrains under which the studio is working.
I have been personally more impressed by the work from Iron Galaxy so far. Their Skyrim port was a true half gen game. Their Diablo port was much closer to the Xbox1 version than the previous gen versions. Much much closer. I know those are old games at core, but they were both showing the limits of the ps360 generation; they run near perfectly on Switch handheld or docked. I hope that the next port by Iron Galaxy will be a more recent game. They wanted to bring Monster Hunter World. If only...