gradually find alternatives for all other products/services of them
The difficult part is finding real alternatives that fundamentally improve the situation. Most of the alternatives out there are just shams, which have all the same problems, but are more expensive, less reliable or otherwise fundamentally flawed. Be it the Feddiverse (literally just a central server, all the federation is optional), Firefox (Google’s way to fend of monopoly lawsuits and stop real alternatives from arising, still telemetry, constantly tries to sell you something) or self hosting (pay more, get less).
Linux on a PC works well enough as Windows alternative, but as soon as it comes to anything networking/Web/cloud related things are a f’n wasteland. The part I don’t get is why we still don’t even have a reliable way to hole-punch through NAT and an alternative to DNS in the Free Software world. That has been the major pain point for at least the last 20 years and is the major stopping block for true P2P alternative software, but it’s still largely an unsolved problems (libp2p is one way to deal with it, but not in widespread use and still has numerous problems from what I understand).