Definitely a love hate relationship. It gets a little easier with time but can still be challenging.
My son’s Orbea came with 24″ tubeless ready wheels. I was at my LBS when it came in arrived and when the mechanic asked if he should set up the wheels tubeless I said yes. It took the mech, another employee, and myself 45 minutes to get the first tire mounted. Another 30 minutes to get the other one. The next morning both tires had gone flat. I fought to get them sealed and pumped up again just for them to lose all pressure in less than 12 hours. My son’s bike has tubes now. In this case the tires and rims just weren’t a good match.
As you continue with your tubeless experience you’ll find some rim and tire combos work really well and others will seem impossible.