Two majors from me:
For tracking autonomous flight get out and test somewhere in the wide open with no obstructions if possible. I'm gonna throw a BS unconfirmed statistic but 90% of people (including myself, twice!) crash their Skydio when it unexpectedly hits a thin branch, powerline, or some other very small obstruction. You need to learn to predict where Skydio might go in the environment you are filming in with the angle, height, and mode you set. Fixed track is much more predictable with rapid changes in directions then motion tracking. I almost never use motion tracking due to how unpredictable it is, and you tend to get prop wash on changes in direction.
Learn the range limitations. I only have Skydio2, not the + so can't speak for that model but Skydio2 is notoriously bad on range especially if you are used to DJI drones. I know that's supposed to be improved on Skydio2+ but still it's worth figuring out the limitations early. Range gets worse when you are flying in crowded wifi environments (cities/suburbia) or with lots of blocking obstructions or dramatic changes in elevation. More than once while flying in the mountains I've gone over a ridge that blocked my signal and lost my Skydio connection. I rarely fly mine more than 600 feet away for this reason. Also note when using beacon and phone the range is worse. Skydio will get 'stuck' in heavily tree'd areas. I've had this happen way too many times then I'd care to admit where I've got autonomous flight going and suddenly, I get disconnect with beacon. I have to back track and try to locate the drone which can be tricky if I'm covering a lot of ground quickly. With that said I film a lot in the PNW backcountry where thick pine trees are rampant, Some people never have this problem if filming in open environments. I think Skydio works best in a desert environment when flying autonomously.