Try not to rely entirely on one company's apps and services. For example, don't use Google for everything, Samsung for everything, or Apple's built-in apps for everything.
Think about things like password managers, note-taking apps, cloud storage, and other tools you depend on daily.
The problem is that some companies make it difficult to move your data elsewhere. You might eventually find a better app or service, but switching becomes such a hassle because all your files, notes, passwords, and workflows are tied to one ecosystem.
Instead, whenever possible, choose apps that work across multiple platforms and make it easy to export your data.
This gives you the freedom to experiment with new tools, switch devices, or move to a different ecosystem whenever you want, without worrying about losing your data or spending hours migrating everything.
The idea is simple: Stay flexible. Don't let convenience today become a limitation tomorrow.
TL;DR: Don't lock yourself into one company's ecosystem. Choose cross-platform apps that let you easily export your data, so you can switch to better alternatives whenever you want without the headache of migrating everything.