What are the pitfalls in using the Cyrillic page address?

Question

Search Engine Optimization

Hello!
It has long been known to everyone that it became possible to create domains in Cyrillic in the .rf zone.
And what are the pitfalls in using the Cyrillic address of the page other than the domain, for example: website.ru/название-страницы
How does this affect indexing by Google Yandex, can the page experience problems when loading (i.e. simply not open) in old browsers?
Sincerely,
Alexander.

Answer 1

with copy-paste, there will be such a shelter ...D0%9B%... called url encode
en.wikipedia.org/wiki/%D0%9B%D0%B8%D0%B2%D0%BE%D0%...
None there shouldn't be any compatibility issues.
Indexed nominally.

Answer 2

Indexing is ok.
Old browsers, how old? ie6 will process fine. which is older, I think too, but it is unlikely that you have such "overgrown" users