But in version 1.34 it didn't work like that, in my case I don't like it because imagine I have global attributes with more than 100 options to choose from and then when I add that attribute to the product it adds 100 options and I waste a lot of time just removing the options.

The problem is that your calculation isn't right.

For example, when you put 350.90€ in your calculator, the price excluding VAT is 285.28

and it should be 285.284553, I show you an example of the demo in Prestashop

And it works fine there and they don't have any problems with Paypal etc...

In the default theme (formerly BS5) on the product listing page, the product box is not centered with the rest of the theme, I see it on a Xiaomi 13T phone, but i already tried in several mobile phones like:

Iphone SE
Iphone 12 Pro
Iphone 14 Pro Max
Samsung Galaxy S20 Ultra

I have added an attachement so you can see what i mean.

How do I remove my store's address from the contact form, as my store is online only and doesn't have a physical address?

In the next version of Abantecart, it would be great if core devs would add the ability to add products to stock by scanning the barcode.

You can the the codes in https://demo.abantecart.com/?s=demo_admin

User: demo
Password: demo

Yes, in reality, it's not easy to upgrade to the latest version. Those who have been working on this for a long time can get things back on track, but those who are new to this are finding it hard to get the site working normally with default theme (bootstrap5), Blocks don't work, some images no longer appear, product zoom works on some images and not on others, many things out of place. It's really frustrating to upgrade and have your site broken, they should do a post explaining what we have to do to make everything work perfectly.

Yes this new version is buggy, i went back to 1.3.4.