Hello @Teddy9
I can see that you found a solution which is great!
I would just like to mention our app that we developed for cases like this. It’s called T-Selector and it lets your customers to select if they like to see the price excluding or including VAT.
One big benefit of doing it this way is that you reduce the risk of being banned from Google merchant center and Google Shopping which will happen if they detect more than one price (two if you have a sale).
You can find out more about T-Selector in Shopify app store - https://apps.shopify.com/tax-selector
Best regards,
Adam