Will never use it. Read what Google did with JS websites and recommendation to implement hashbang and escaped fragment to provide prerendered version. You wont

Will never use it. Read what Google did with JS websites and recommendation to implement hashbang and escaped fragment to provide prerendered version. You wont. Because it didnt work and killed SEO. Than after years they silently removed documentation about it. Not providing any way to transition to other ways without damaging SEO ever more and moreover, it was impossible to do anything about it because server does not receive data after hash. And now Google tries to force new standard that is technically broken. Dont use it. It is a trap. It will hurt your SEO sooner or later!