Most community members rely on the "host kick" function to manage trainers. Using these tools in public lobbies without consent often results in immediate bans from those specific sessions.
However, Payday 3 launched with severe server-side anti-cheat (Denuvo and Nebula), making trainers nearly impossible to use without immediate bans. Consequently, many cheaters and "trainer enthusiasts" have retreated back to Payday 2. Ultimate Trainer Payday 2
Because the game uses the Diesel engine (old school), the trainer is remarkably stable. Crashes usually only occur if you spawn too many entities at once. Most community members rely on the "host kick"