The risk of long Covid per infection was higher early on during the pandemic, and when you had to be hospitalized.
However, many more people got infected with one of more of the Omicron variants, and even though the risk per infection may be lower, many more people now have long Covid from their Omicron infection.
No, it is still not safe to repeatedly catch Covid.
https://www.theguardian.com/world/article/2024/jul/31/long-covid-health-issues-persist-in-those-hospitalised-early-in-pandemic-study-finds