Which is your preferred thumb key for space and return on the sofle? Default has return on the left and space on the right. I’ve been using it opposite for a bit with space on the left and was liking that but figured I’d try it out in the default config for a bit. Not sure which I like more / which one feels more comfortable. What’s your preference? Do you use space on the left or the right side? Is there a reason for the enter/return key being on the left and space on the right by default?
One argument for moving space to a specific hand is so space is assigned to the vowel hand. If you are on a layout with definitive vowel / consonant hand split, then the theory goes that it is more frequent for words (at least in English) to begin with a consonant, and separately, also end with a consonant. By having space on the vowel hand, you are promoting hand alternation.
Personally I have vowels on the left hand but still use right thumb for space. I do have ‘e’ on left thumb, but right hand thumb has been a habit since I learned qwerty on a mechanical typewriter…
Right hand consonants must have been the reason indeed (t, s, r, n, … ). It is counterbalanced by the fact that punctuation is on the vowel side, but I suppose it doesn’t count as much.