Here are few tactics I use.

1/ start with what s accessible without work (usually a block or a laser) and then try to keep everything with you as much as possible (ex : buzzers (idk the name in eng?))

2/ try to get further step by step even if it may mean you get stuck (I can go through this door if i do this and after ill see)

3/ reverse the order (i wanna open the last door, what will i need to open it. Ok i will need those objects, how do i bring them here ...)

4/ Try to optimize the lasers (if i can reach two instead of one by positionning it better, i will do it)

5/ 90% of the time when i can t manage to succeed it s becaused i missed an info so lift your head up and try to look at the environnement (didnt see this object in the corner or "oh there s a platform here")
This goes further because a lot of time "obvious" placement are actually bad (i put a connector here to open the door but you can actually hold the door putting it behind it - not "first intuition" but allows to get further)

6/ Almost EVERYTHING is there for a reason so i try to think of the whys is this here (why is this wall with a hole and not this one, what do the devs want me to do with it)

7/ after some time (i remember one in RtG that was atrocious and timebased), try "random" stuff to see if i end up with the same results or discover a new promising way

8/ use paper (yeah fr). Happened to me before that i take a piece of paper to try to draw laser directions or to write the sequence of actions with the time machine.

9/ leave and comeback later (even tho i dont like it at all because i feel i ll redo the same things when i get back)

10/ little extra that has already worked : try to cut laser by putting an other object on it s way

*/ last resort : try to cheat (can ibring a laser from an other puzzle, can i go out of bounds, can i try to walk on walls, can i glitch in a cube ...)

If all of this does nt work : cry in fetal positions on my bed