TLDR: Easy busywork but depends on your group, TA, and helps if you have taken 4AL

This class is entirely dependent on your TA and your group. You are placed in a group at the beginning of the year and you stay in it for the whole quarter and are supposed to do all the work together (you pretty much do everything on your own and come together for the unit report and the final project at the end of the quarter). It helps a lot if you have already taken 4AL but I know 2 people in my group hadn't before and only struggled a little bit. There are 4 units, Training (reaction time), sound, circuits, and the final project. the first unit and the beginning of the second unit were copy-paste of the first and second unit of 4AL so it's easy to reuse work and data. The rest of the units are just a lot of busywork up until the final project which can be as fun as you make it (you choose to build something out of the UNO kit). My TA was horrible and my group was smaller than all the others but the work itself isn't very hard. If you need help you can ask your groupmates or go to the TAs office hours (I went once and I was the only person all quarter so if you want help but dont want to hurt your ego it's easy to ask questions alone). If you have problems with your group or TA make sure to change it defore the drop deadline because after almost nothing will change!

This class sucks so bad and depends on your TA literally just switch TAs if you hate them it'll make your quarter miserable especially if you're not a physics major

While physics lab is apparently better than it was before, it was still a very frustrating class.
A lot of it is just coding and Arduino stuff which is pretty easy, but if you have no experience they try to group you with people that do. This can lead to one person being relied on to do a lot of the coding. I recommend you pretend not to have extensive experience when filling out the pre-class survey.
The class is mostly just check-offs and reports. Reports can be frustrating because it was obvious TAs were selectively taking off points to maintain a grade level of around high 80s to low 90s. The weirdest things would end up with points taken off, even if the exact same thing was done in previous reports. It was difficult to communicate through remote learning which made it very frustrating as well. Instructions were often unclear.

This class is an improvement on 4AL in structure, but not work. Slides feel much more coherent and helpful. The lab computers are actually usable which means the issue of having a Mac is mostly alleviated. However, note that this class is a lot more work than 4AL. Entire reports and a much faster pace. Likewise, the Arduino familiarity required for the final project is extremely high as you will be building a device rather than testing a theory. Make sure you have someone in your group comfortable with Arduino code or else you will suffer.

This class actually sucks. The TAs don't care at all and seemingly barely understand the lab setups at all, the tutorials are written and designed incredibly poorly, the curriculum assumes a baseline knowledge of python which is NOT listed in the prerequisites, half of the components that you will use in class are faulty and the data looks weird because of it, I could go on.

I thought Physics 4AL was a lot of work for the amount of credits it was worth, but then I took 4BL and found it could get so, so much worse. Instead of post-labs you just have full lab reports due every week, on top of multiple pre-labs a week. The grading entirely depends on your TA. My group would spend 10+ hours on a report and still get a B+ (being the highest grade in the class). The slides are confusing and the pre-labs are worse.

If you know other people taking the class, try to group with them so that you know your group will pull its weight. This isn't a class you want to be carrying solo.