Hmm I think there’s a bit of confusion about the terms, what I’d like is just having an “All accounts” sections in the the Accounts tab that adds them all together, or at least a total at the top of the Feed screen. Seems silly but seeing that number go up really motivates me to try to save more.
The way I dealt with other assets in the past is to add a manual account for them, which works for simple things that don’t change value often.