These guides answer the specific editing questions that come up after you pick a tool. Start with the one that matches your immediate problem: an export that still carries a watermark, a feature you need such as chroma key or automatic silence removal, or a device like a Chromebook with limited editor choices.
If you are still deciding whether to pay, export a short test video on the free plan first and read the guides on watermark-free free editors and free-to-paid upgrade points. That shows what the paid plan actually changes for your kind of video.
For subtitles, read the export check guides before delivering any SRT or VTT file to a client or platform. If an app you relied on has been discontinued, the replacement guide covers saving your existing videos before choosing something new.