Thank you for writing in and I'm sorry to hear that you seem to be running into some issues while using Pro. We can assure you that Pro is absolutely mobile friendly in every way, but as mentioned by @kyle, more of this responsibility rests on the shoulders of the end user while utilizing Pro as it is built to be as flexible as possible in every way, since the needs of what people require are different from project to project. We cannot include something as simple as "if small screen, stack" into a "setting," because that is the entire point of X vs. Pro. X contains greatly simplified settings that yield satisfying results across the board because they have been curated and abstracted away to make X very simple to work with; however, with this you run into the near endless list of options people wish to change, which simply cannot be provided at an option level as changing one thing has an effect on everything else (e.g. if you change the background color to something, all nested colors may need to change as well, or if you change the font size of an element, you may need to change the dimensions and spacing or breakpoints when things show/hide based on that new size). The permutations are truly endless, which is where Pro comes in.
Pro still provides a highly curated set of options, but they are more "base level," requiring the user to think through how things are setup a little more, but allowing you to truly achieve nearly any layout imaginable.
At a very simple level, if you're finding that Pro is a bit more to manage than you expected, you can still absolutely create multiple bars/containers/elements that are shown and hidden at various breakpoints. This is a valid technique utilized by most all websites these days, and many of our provided templates do this to achieve a radically different layout from desktop to mobile. I would highly recommend you start with one of our base templates to see how this works in action (see how we've setup each element, when they're hidden, how they flow, et cetera).
Regarding having elements, "stack," you can absolutely achieve this, but again, as it completely depends on each user's setup, there is no way to just have a "stack containers at (X) breakpoint," "stack elements at (x) breakpoint," et cetera. Depending on how many containers you have and how you want them to flow, your needs will be different. And if you have a varying degree of elements within your bars, again, the combinations are endless and providing some "option" to just click on would take us back into the territory of X, which is much more "set it and forget it," but there would be many users who need to customize this to their liking. I would highly recommend taking a look at our footer builder's Columns template as this shows how to get columns to very intelligently and dynamically respond to the user's viewport even without using media queries. Also, our tips and tricks article for Pro goes into great detail on things such as Flexbox, navigation ideas, and more, while our partials article goes into further detail breaking down the small, reusable bits of code you use throughout all aspects of Pro.
I can absolutely assure you, nearly anything you wish to achieve in Pro is possible, but you will have to put in a little bit of work towards achieving that end as that is the entire point of Pro. It gives a firm foundation for experienced builders to work on with a proverbial "1,000 hour headstart" in not having to think of the nitty gritty patterns and responsive considerations, but you have fully styling control. If you are finding Pro to be too granular for your needs, you may find considering a switch back to X to be the best course of action moving forward.
Regarding some of the specific examples you've cited in this thread, regretfully your site is not pulling up for me. I tried multiple times going to domain removed as well as domain removed, which you referenced in previous threads, but neither of those is working. At this time, the guidance I have provided above is the best I can do without being able to see your site live, but I do highly recommend that you take the time to review the resources mentioned here as they are an important part of understanding how the pieces of Pro all fit together. Like any nuanced tool, there is a learning curve to be expected, and Pro is no different. If you're having trouble, always reference the documentation, or you can absolutely use one of our starting templates or presets to get you well on the road to achieving the look you desire.
Hopefully this helps to point you in the right direction.
Jack's note: Edited to remove domains as requested.