Honestly, I think biting the bullet and trying your hand at coding will be worth your time. Visual scripting typically fall into two camps: code but it is visual (in this case it is just slower, more cumbersome and harder to read) or limiting (this may be fine depending on your needs, but you may also outgrow it). A middleground could be coding where the vast majority is done for you. For example in Godot, there are many nodes that are fully built and just need your custom settings. There are even freely available nodes in the asset store if you need more. Then, if you need some behaviour that does not yet exist, you just code that little part, which will be a great learning experience in of itself.

My biggest tip though, regardless of the approach you take, is keep it simple. Your first game should be ridiculously simple. For example, the first game I made was a 2d scroller spaceship shooter where there were only asteroids as "enemies". I could then add onto that to test my coding skills, and eventually it was fairly fun, even if it had simple roots.

you can use flax engine, i used it and i like it

if you know how to use blender you can use armory3d or upbge. I especially like armory3d, it's fun to use, Installing as an add-on to blender. I never got bored while developing games.

but none of them has as big a community as godot. And no game engine has as many sources and features as godot. i want you to know that

What are you trying to make? I'm not aware of anything open source.

I think short of using rpgmaker (not open source) or something like it (that makes a very specific kind of game and you are really just plugging in content) you aren't going to get very far into game development with no coding at all.

Unity (again not open source) allows you to do a lot without coding, but by the time you learn how to use Unity you may as well follow their provided education/classes and learn to code while you're at it.

It could be an XY problem, to make a game you would need a coding skills. I would consider joining a team in a game jam as an artist if you have 2d or 3d skills or as a sound guy if you like making music. A short deadline would make for lack of long term motivation. Other people would help you out in things where you lack necessary skills. Designing a board game could be a good alternative. If you like writing, making a gamebook would also be a possibility.

GDevelop fits your question 100% in my opinion.

Not sure if there’s any (good) visual scripting solutions for Godot, because otherwise that would be a pretty good option!

Edit: Oops, I missed these were supposed to be open source lol, sorry!

There are quite a few: Unreal has it, Construct 3, Clickteam Fusion, RPG Maker if you want to make RPGs,I think GameMaker Studio as well... There are lots that you can find with a simple search on the internet. I never really used them though, since trying to do anything more complicated usually ends up being harder in Visual Languages. In the end, the logic and thinking is the same as with text-based coding, it just has some more syntax that you have to memorize (which sounds intimidating, but isn't that hard). Godot is honestly great and the scripting language is pretty simple even as a beginner, so maybe you should give it another try.

UPBGE is a free and open source game engine (it's a fork of Blender) and has node-based game logic built in. From what I understand, you can get really far with using only nodes. Maybe even your entire game, I'm not sure.