No question, Apple is one of the top industry leaders when it comes to pushing out updates. They are also a multi-trillion-dollar company who has been pushing updates for iPhone for more than 14 years. And they have the luxury of standardized hardware components, since they can make those sorts of demands on their vendors. Lucid has no such power over vendors yet. So they are forced to put somewhat different components in different cars. As
@hydbob suggests, that could be complicating matters quite a bit.
The fact that Lucid has hired an ex-Apple alum with many years of firmware experience bodes well for Lucid's future abilities in this area. All indicators are pointing in the right direction for massive improvements on the software side coming soon. It's just not coming fast enough for folks who are already driving their cars. I totally get that.
Let's hope they can get all these improvements done before they start delivering Pure en masse.