In my experience they don’t understand what it is,certainly in terms of colour. They can have a form of it to all foreigners but ‘race’ specific not on their radar. Think it’s the Buddhist culture maybe. Anyway love them for it, or the lack of it.
At some point they may ask you why you are using free ones and not getting a tourist visa. But now they are both 60 days? Will be fine with just short trips
Get photos together in front of hotel and house. Also photos with family. Apply with the view SH needs to return to Thailand. Go for a two or five year visa allowing six months per year