Keep it simple. Start off with basic KB exercises like the Swing and the Goblet Squat. Affter you get these down, then you can progress to the clean, snatch etc. The KB windmill is great for hip, hamstring and shoulder mobility.
Technique is more important than anything especially at the beginning so that you don't pick up bad habits.
I like Mike Salemi for technique, you can google his name in YouTube, he also has a bunch of videos on the Mind Pump TV channel.
I taught Kettlebell pre-covid. The KB swing is definitely a great exercise for your entire body and cardiovascular system at the same time.
Start off with sets of 10, then gradually work your way up. You can also do a ladder, pyradmids etc.
I used to do 300 swings a day, I like to do them in sets of 25.