It is definitely more reliable than any CCS charger. Tesla has the track record to prove it. No matter what anyone thinks of Tesla, they surely got the Supercharging right.
Why do you think car manufactures are switching to it? I have never once had one issue supercharging my Tesla. When the other manufactures produce cars that have the Tesla charging connector built in, then it will certainly be more reliable for them too.
With all these manufacturers eventually switching to Tesla chargers and ditching CCS, it makes me think twice about purchasing any EV with CCS built in until the Tesla charger is built in, as the CCS standard could be obsolete in a matter of years.
As a consumer, this will be best for the adoption of EV’s in North America, as CCS superchargers have too many negative stories about them. You can just look at this forum and see that. I would feel much better buying a Lucid or any CCS car if it had Tesla supercharging connector built in and could access the reliable Tesla Supercharging network and I am not alone.