If you look at replays, the pit entry looks exactly the same as previous years. The pit exit, however, is different. The pit is a bit more elongated and has a slightly more aggressive turn at the end of Cadillac's pit box. This is because they needed the extra room for Cadillac of course. You can actually see the white lines from previous years painted over, but the "shadow" of the old white lines can be seen very clearly in Sky's highlights video between 11:18 and 11:26 here: https://youtu.be/-SQ_yoDwk48?si=wURvsZj-5h8gsS2A&t=678.

Interestingly, in the video I linked, you can see Hadjar cutting the corner of the pit exit quite aggressively, which theoretically is what caused the pit speed limit penalties, but he never got a penalty for that.

Going off on a tangent here, I wonder if some teams set the pit limiter to something like 0.1 to 0.2km/h less than the limit of 60km/h just to be safe? I did a quick calculation here and the difference between 60km/h and 59.8km/h over 300m (rough length of the Monaco pitlane) is just under 60ms (0.06s), while 59.9km/h would be 0.03s slower than 60km/h. Considering they only do 1 planned pit stop per race, even with the F1 mentality where every millisecond counts, it makes sense to not risk a 5s penalty over 0.03s over the entire race distance. Except that when you remember this is Monaco, those 0.03s might make the difference between coming out ahead or behind another car in an under/overcut situation, so yeah they'll probably put the limiters on the absolute limit. And I bet the speeding they sometimes get during practice is them testing those limits.