no matter how many technologies you are familiar/proficient with there will always be a longer list of technologies for which you have little to no familiarity or proficiency.
it is this second list whose members will jump out at you most when looking through job descriptions.
don't let the second list intimidate you. every skill in the list of things you count as your skillset was once listed on the second list, too.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.