Progressive overload sounds technical, but it is simple: do a bit more over time. That could mean more weight, more reps, more sets, better control, or shorter rest with the same performance.
Most people focus only on adding weight. That works for a while, but it is not the only path. If you bench 80 kg for 3 sets of 6 this week and 3 sets of 8 next week with the same form, that is overload too.
You want progression that is sustainable, not heroic. Tiny jumps win. Add 1 to 2.5 kg when possible. Add one rep before adding load. Improve execution. Keep your range of motion honest.
Use a rep range to make this easy. Example: 3 sets of 6 to 10 reps. Start near the low end, build reps over sessions, and when all sets hit the top end, add weight and repeat.
Track your lifts. If you do not write down performance, overload becomes guesswork. You will either stall because you play it safe, or burn out because you push randomly.
Progressive overload is not about maxing out every workout. It is about stacking small wins until they become very hard to ignore.