The last Falkon update was 8 months ago (falkon.org/posts), seems like a very long time for a browser without any updates. Is it not a security problem to run a browser like this?
Why would exposing any primary key be bad for security? If your system's security *in any way* depends on the randomness of a database private key, you have other problems. It's not the job of a primary key to add to security. Not to mention that UUIDv7 has 6 random bytes, which, for the vast majority of web applications, even finance, is more than enough randomness. Just imagine how many requests an attacker would need to make to guess even one UUID (281 trillion possible combinations for 6 random bytes, and he also would need to guess the unix timestamp in ms correctly). The only scenario I can think of is that you use the primary as a sort of API key.