This is completely inaccurate. There is PrEP that requires dosing two times a year. You can also get PEP if you engage in a risky activity without PrEP.
That PrEP is in some ways similar to a vaccine, and there is still a lot of value in getting a better vaccine (cheaper and/or lasting longer).
Yes, it exists, but how available is it really? If I recall correctly, the injections are also not very pleasant.
"Gilead sells LEN at very high prices (over $28,000 per person per year in the US), severely restricts its supply to certain countries, and refuses to sell it directly to Doctors Without Borders/Médecins Sans Frontières"
Source: https://www.doctorswithoutborders.org/latest/campaigns/acces...