Alright sueds, sorry for formulating it that way, I didn't mean it as an offense.
Basically, I figure I might have been a little upset posting my comment because there is apparently a logical mistake in your question! Sure, people who have worked with the engine will know its capabilities and are thus the ones you would ask rather than just google around. But: If you ask a question like "Is 3DGS the best engine?" you require the people whom you ask to have made experiences not only with 3DGS but with almost any other engine on the market! Otherwise, how would they be able to compare 3DGS to them?
So, please don't take it as an offense - I'm saying this peacefully

- if I take it you more or less expect others to do research on many many engines and compare them to 3DGS. You're absolutely right asking in this forum about 3DGS's capabilities. But the research on other engines, that one you could've done yourself. Or you could at least have asked a little more specificly (e.g. "How good is 3DGS when it comes to <insert features here> ?") so that people know you have already made some effort on gaining knowledge on the subject. See what I mean?
I'm not considering myself particularly intelligent at all, I simply overreacted a little. Sorry - let's have peace, shall we
