You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser. Ever since 14.4, my pinned tabs in Safari gets "soft" wiped every time I quit and launch it again. They come back if I open a new window right after launch(in all non-private windows). It's been 9 months and 1 major OS upgrade later(on 15.2 now), and this is seemingly never fixed, I've had to just let a few tabs sit unpinned all the time taking up much more space. Moreover, I seemingly can't find anyone else with this issue...
Troubleshooting info:
I only have AdGuard for Safari enabled, doesn't seem to make a difference with it on or off. Is there anything else I can try or have I missed some super obvious setting here?