WetGeek why don't you just install Dolphin. It's a great file manager, and although it might bring with it a few KDE dependencies,
Instead of installing Dolphin from the repository, I would advise to install the Dolphin flatpak. That would avoid the problem with KDE dependencies, since they are theoretically included in the flatpak, and should not interfere with your desktop.
https://flathub.org/apps/details/org.kde.dolphin
brent Dolphin uses the Baloo file indexer which, on my installs, indexes my entire computer not every couple hours, not every day, not every week, not every hour but every second nonstop. Paralyzed the the system, sucked up resources, obliterated memory. Crash crash crash. Watching it in System Monitor was like watching a horror film. There's a reason I remember Dolphin so easily and vividly.
It's not the first time I have read about this problem with Baloo, I wonder why some people suffer from it, and others don't. I know we are all fans of Solus here, but believe me, in Solus KDE this doesn't happen (at least not in my computers). I would have moved to Solus MATE a long time ago if it did. π
By the way, when you have used Solus MATE some time, and if you like, I would love to hear what you think of it.