The only issue is that 4 years ago, companies advertising as remote were remote because they thought it the better way to work and find talent globally from the start (think GitLab, Canonical, Hotjar...).
With a particular event of interest in 2020, a bunch of companies switched to remote out of necessity, and many have not moved back still. They generally employ from their base countries, they just don't require you to go to the office.
So, if you searched for "remote" job options 4 years ago, it meant one thing. While most of the same companies which were remote back then are still remote today, their job ads get lost in the 100x of "new remote" job ads.