Xwayland apps work bad. If I open one app which uses xwayland, like steam some parts of interface would be unclickable. If I open multiple apps, like v2rayN, Steam, Onlyoffice some apps would become fully unclickable, no parts of interface would work and sometimes you can click in one xwayland app and it would result in a click in another xwayland app.
Example 1, clicking search in Steam results in a click on templates in Onlyoffice:
Example 2, hovering mouse over v2rayN causes steam menus to appear (sorry for the quality):

Xwayland apps work bad. If I open one app which uses xwayland, like steam some parts of interface would be unclickable. If I open multiple apps, like v2rayN, Steam, Onlyoffice some apps would become fully unclickable, no parts of interface would work and sometimes you can click in one xwayland app and it would result in a click in another xwayland app.
Example 1, clicking search in Steam results in a click on templates in Onlyoffice:
Example 2, hovering mouse over v2rayN causes steam menus to appear (sorry for the quality):