I would be in favour of an elected non political head of state, in office for a short term, possibly three years.
When Her Maj opened Parliament the other day, a lot of the pomp and ceremony had been abandoned. For instance, she didn't wear the crown, it was simply carried into the chamber.
I think the royals are going down a risky path at the moment. They are abandoning much of their traditional ceremony, presumably so they will be seen as more modern and relevant. Yet, it is these very ceremonies that attract tourists, which is always stated as a strong reason to keep the monarchy.
If they reduce and simplify everything too much, people will see them as completely irrelevant. Why not merely carry the crown into the chamber to symbolise the monarchy? Why have the Queen there at all?
Add to this, the problem that they are overburdened with charitable patronages that there are far fewer senior royals now available to support, the long term effects of the pandemic on tourism worldwide, the scandals that have hit this dysfunctional family which Harry is highlighting, etc etc and it all looks pretty bleak for the Mountbatten-Windsors.
The royals stay in power by public acclaim, because the population is generally complicit with them maintaining their position.
If their situation was changed, I doubt they would be allowed to retain their vast personal wealth, their property would be commandeered by the state, look at how the rule of the Shah of Iran, or the Greek royal family ended, for clues.