Autoflowers;Topping while doing LST?

What is done is done and it is good to experiment to find out what works best for that particular strain. I personally avoid topping autos based on the research that I've done and by experience, I don't want to stunt the plant's growth at the early stages. Although you can get good results from topping, but I believe the plant would need to be happy and healthy and keep in mind it will take longer to harvest as they have to recuperate from the stress. I think your best bet with autos is to LST early and defoliate when you are out of pre-flower. Best of luck!

Gib ihr nach dem ersten, großen LST ein paar Tage Zeit bis zum FIM. Ansonsten sollte das kein Problem sein, solange deine Pflanzen gesund und stark sind und keine Mängel zeigen.

You can top autos but it's not recommended. The goal the first few weeks is to establish a good root mass. Just LST and a bit of leaf stripping doesn't stress them too much . However I have also found that when I have topped autos some of them turn out big plants and they seem to run a couple weeks longer. I'm still debating whether topping autos is worth it.

I’m not really a fan of toppings autos just because we don’t generally know when they are going to go into flower and the toppings stunt the plant growth. Just from one grower to another that would be my opinion

Fimming or topping both go together very well with LST :) Try to plan your LST beforehand, especially with fimming a lot of branches can pop out and you'll have to spread it lots of ways. Good luck!