a lot of ’90s* and early 2000s* sitcoms

Made in the 2010s*

Fx* on Linux

Ty

🫸🫷

all big OSs*

Mid-’80s* me

Omitting is fine… just a bit ambiguous. It’s the apostrophe misuse that matters :)

It’s* a swing

The team leader in TDs*

in the ’70s* and probably the ’80s*

That happened in the ’80s*.

the old Usenet newsgroups of the ’90s*

In the ’90s*

slidge-whatsapp gateway for XMPP

Syntax, not grammar

found in Fx*

the source of Fx*

That’s quite weird then since f & v, s & z, þ & ð are distinguishable sounds based on voicing. The only exception that is pretty wide spread for “th” sounds is in Ireland, but there is a quality difference is the aspiration between the two usually. Are you sure you are paying attention the vibrations of the throat?

[I’m] in my mid-30s*

Skill issue! Nah, I have met plenty people that have the same reaction (English isn’t their first language). However, these sound are distinguishable by native speaker and will leave folks confused on occasion due to the ambiguity, or worse, hearing the wrong word entirely. The good news is that it can be learned and isn’t that difficult—you could probably pick it up from a video tutorial in a couple of minutes in your native language to which then it is just practice.